42105420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 240

約数和(自身を含む): 156119040

約数和(自身を除く): 114013620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 47, 54, 60, 63, 70, 79, 81, 84, 90, 94, 105, 108, 126, 135, 140, 141, 158, 162, 180, 188, 189, 210, 235, 237, 252, 270, 282, 315, 316, 324, 329, 378, 395, 405, 420, 423, 470, 474, 540, 553, 564, 567, 630, 658, 705, 711, 756, 790, 810, 846, 940, 945, 948, 987, 1106, 1134, 1185, 1260, 1269, 1316, 1410, 1422, 1580, 1620, 1645, 1659, 1692, 1890, 1974, 2115, 2133, 2212, 2268, 2370, 2538, 2765, 2820, 2835, 2844, 2961, 3290, 3318, 3555, 3713, 3780, 3807, 3948, 4230, 4266, 4740, 4935, 4977, 5076, 5530, 5670, 5922, 6345, 6399, 6580, 6636, 7110, 7426, 7614, 8295, 8460, 8532, 8883, 9870, 9954, 10665, 11060, 11139, 11340, 11844, 12690, 12798, 14220, 14805, 14852, 14931, 15228, 16590, 17766, 18565, 19035, 19740, 19908, 21330, 22278, 24885, 25380, 25596, 25991, 26649, 29610, 29862, 31995, 33180, 33417, 35532, 37130, 38070, 42660, 44415, 44556, 44793, 49770, 51982, 53298, 55695, 59220, 59724, 63990, 66834, 74260, 74655, 76140, 77973, 88830, 89586, 99540, 100251, 103964, 106596, 111390, 127980, 129955, 133245, 133668, 149310, 155946, 167085, 177660, 179172, 200502, 222780, 223965, 233919, 259910, 266490, 298620, 300753, 311892, 334170, 389865, 401004, 447930, 467838, 501255, 519820, 532980, 601506, 668340, 701757, 779730, 895860, 935676, 1002510, 1169595, 1203012, 1403514, 1503765, 1559460, 2005020, 2105271, 2339190, 2807028, 3007530, 3508785, 4210542, 4678380, 6015060, 7017570, 8421084, 10526355, 14035140, 21052710, 42105420]

約数ペア:

[(1, 42105420), (2, 21052710), (3, 14035140), (4, 10526355), (5, 8421084), (6, 7017570), (7, 6015060), (9, 4678380), (10, 4210542), (12, 3508785), (14, 3007530), (15, 2807028), (18, 2339190), (20, 2105271), (21, 2005020), (27, 1559460), (28, 1503765), (30, 1403514), (35, 1203012), (36, 1169595), (42, 1002510), (45, 935676), (47, 895860), (54, 779730), (60, 701757), (63, 668340), (70, 601506), (79, 532980), (81, 519820), (84, 501255), (90, 467838), (94, 447930), (105, 401004), (108, 389865), (126, 334170), (135, 311892), (140, 300753), (141, 298620), (158, 266490), (162, 259910), (180, 233919), (188, 223965), (189, 222780), (210, 200502), (235, 179172), (237, 177660), (252, 167085), (270, 155946), (282, 149310), (315, 133668), (316, 133245), (324, 129955), (329, 127980), (378, 111390), (395, 106596), (405, 103964), (420, 100251), (423, 99540), (470, 89586), (474, 88830), (540, 77973), (553, 76140), (564, 74655), (567, 74260), (630, 66834), (658, 63990), (705, 59724), (711, 59220), (756, 55695), (790, 53298), (810, 51982), (846, 49770), (940, 44793), (945, 44556), (948, 44415), (987, 42660), (1106, 38070), (1134, 37130), (1185, 35532), (1260, 33417), (1269, 33180), (1316, 31995), (1410, 29862), (1422, 29610), (1580, 26649), (1620, 25991), (1645, 25596), (1659, 25380), (1692, 24885), (1890, 22278), (1974, 21330), (2115, 19908), (2133, 19740), (2212, 19035), (2268, 18565), (2370, 17766), (2538, 16590), (2765, 15228), (2820, 14931), (2835, 14852), (2844, 14805), (2961, 14220), (3290, 12798), (3318, 12690), (3555, 11844), (3713, 11340), (3780, 11139), (3807, 11060), (3948, 10665), (4230, 9954), (4266, 9870), (4740, 8883), (4935, 8532), (4977, 8460), (5076, 8295), (5530, 7614), (5670, 7426), (5922, 7110), (6345, 6636), (6399, 6580)]