291235080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{991}}^1$

素因数の和:1115

約数の個数: 128

約数和(自身を含む): 914227200

約数和(自身を除く): 622992120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 79, 93, 120, 124, 155, 158, 186, 237, 248, 310, 316, 372, 395, 465, 474, 620, 632, 744, 790, 930, 948, 991, 1185, 1240, 1580, 1860, 1896, 1982, 2370, 2449, 2973, 3160, 3720, 3964, 4740, 4898, 4955, 5946, 7347, 7928, 9480, 9796, 9910, 11892, 12245, 14694, 14865, 19592, 19820, 23784, 24490, 29388, 29730, 30721, 36735, 39640, 48980, 58776, 59460, 61442, 73470, 78289, 92163, 97960, 118920, 122884, 146940, 153605, 156578, 184326, 234867, 245768, 293880, 307210, 313156, 368652, 391445, 460815, 469734, 614420, 626312, 737304, 782890, 921630, 939468, 1174335, 1228840, 1565780, 1843260, 1878936, 2348670, 2426959, 3131560, 3686520, 4697340, 4853918, 7280877, 9394680, 9707836, 12134795, 14561754, 19415672, 24269590, 29123508, 36404385, 48539180, 58247016, 72808770, 97078360, 145617540, 291235080]

約数ペア:

[(1, 291235080), (2, 145617540), (3, 97078360), (4, 72808770), (5, 58247016), (6, 48539180), (8, 36404385), (10, 29123508), (12, 24269590), (15, 19415672), (20, 14561754), (24, 12134795), (30, 9707836), (31, 9394680), (40, 7280877), (60, 4853918), (62, 4697340), (79, 3686520), (93, 3131560), (120, 2426959), (124, 2348670), (155, 1878936), (158, 1843260), (186, 1565780), (237, 1228840), (248, 1174335), (310, 939468), (316, 921630), (372, 782890), (395, 737304), (465, 626312), (474, 614420), (620, 469734), (632, 460815), (744, 391445), (790, 368652), (930, 313156), (948, 307210), (991, 293880), (1185, 245768), (1240, 234867), (1580, 184326), (1860, 156578), (1896, 153605), (1982, 146940), (2370, 122884), (2449, 118920), (2973, 97960), (3160, 92163), (3720, 78289), (3964, 73470), (4740, 61442), (4898, 59460), (4955, 58776), (5946, 48980), (7347, 39640), (7928, 36735), (9480, 30721), (9796, 29730), (9910, 29388), (11892, 24490), (12245, 23784), (14694, 19820), (14865, 19592)]