619968580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 216

約数和(自身を含む): 1763899200

約数和(自身を除く): 1143930620

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 49, 55, 68, 70, 77, 85, 98, 110, 119, 140, 154, 170, 187, 196, 199, 220, 238, 245, 289, 308, 340, 374, 385, 398, 476, 490, 539, 578, 595, 748, 770, 796, 833, 935, 980, 995, 1078, 1156, 1190, 1309, 1393, 1445, 1540, 1666, 1870, 1990, 2023, 2156, 2189, 2380, 2618, 2695, 2786, 2890, 3179, 3332, 3383, 3740, 3980, 4046, 4165, 4378, 5236, 5390, 5572, 5780, 6358, 6545, 6766, 6965, 8092, 8330, 8756, 9163, 9751, 10115, 10780, 10945, 12716, 13090, 13532, 13930, 14161, 15323, 15895, 16660, 16915, 18326, 19502, 20230, 21890, 22253, 23681, 26180, 27860, 28322, 30646, 31790, 33830, 36652, 37213, 39004, 40460, 43780, 44506, 45815, 47362, 48755, 56644, 57511, 61292, 63580, 67660, 70805, 74426, 76615, 89012, 91630, 94724, 97510, 107261, 111265, 115022, 118405, 141610, 148852, 153230, 155771, 165767, 183260, 186065, 195020, 214522, 222530, 230044, 236810, 260491, 283220, 287555, 306460, 311542, 331534, 372130, 402577, 429044, 445060, 473620, 520982, 536305, 575110, 623084, 632621, 663068, 744260, 778855, 805154, 828835, 1041964, 1072610, 1150220, 1265242, 1302455, 1557710, 1610308, 1657670, 1823437, 2012885, 2145220, 2530484, 2604910, 2818039, 3115420, 3163105, 3315340, 3646874, 4025770, 4428347, 5209820, 5636078, 6326210, 7293748, 8051540, 8856694, 9117185, 11272156, 12652420, 14090195, 17713388, 18234370, 22141735, 28180390, 30998429, 36468740, 44283470, 56360780, 61996858, 88566940, 123993716, 154992145, 309984290, 619968580]

約数ペア:

[(1, 619968580), (2, 309984290), (4, 154992145), (5, 123993716), (7, 88566940), (10, 61996858), (11, 56360780), (14, 44283470), (17, 36468740), (20, 30998429), (22, 28180390), (28, 22141735), (34, 18234370), (35, 17713388), (44, 14090195), (49, 12652420), (55, 11272156), (68, 9117185), (70, 8856694), (77, 8051540), (85, 7293748), (98, 6326210), (110, 5636078), (119, 5209820), (140, 4428347), (154, 4025770), (170, 3646874), (187, 3315340), (196, 3163105), (199, 3115420), (220, 2818039), (238, 2604910), (245, 2530484), (289, 2145220), (308, 2012885), (340, 1823437), (374, 1657670), (385, 1610308), (398, 1557710), (476, 1302455), (490, 1265242), (539, 1150220), (578, 1072610), (595, 1041964), (748, 828835), (770, 805154), (796, 778855), (833, 744260), (935, 663068), (980, 632621), (995, 623084), (1078, 575110), (1156, 536305), (1190, 520982), (1309, 473620), (1393, 445060), (1445, 429044), (1540, 402577), (1666, 372130), (1870, 331534), (1990, 311542), (2023, 306460), (2156, 287555), (2189, 283220), (2380, 260491), (2618, 236810), (2695, 230044), (2786, 222530), (2890, 214522), (3179, 195020), (3332, 186065), (3383, 183260), (3740, 165767), (3980, 155771), (4046, 153230), (4165, 148852), (4378, 141610), (5236, 118405), (5390, 115022), (5572, 111265), (5780, 107261), (6358, 97510), (6545, 94724), (6766, 91630), (6965, 89012), (8092, 76615), (8330, 74426), (8756, 70805), (9163, 67660), (9751, 63580), (10115, 61292), (10780, 57511), (10945, 56644), (12716, 48755), (13090, 47362), (13532, 45815), (13930, 44506), (14161, 43780), (15323, 40460), (15895, 39004), (16660, 37213), (16915, 36652), (18326, 33830), (19502, 31790), (20230, 30646), (21890, 28322), (22253, 27860), (23681, 26180)]