389600900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 983218320

約数和(自身を除く): 593617420

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 61, 65, 68, 85, 100, 122, 130, 170, 221, 244, 260, 289, 305, 325, 340, 425, 442, 578, 610, 650, 793, 850, 884, 1037, 1105, 1156, 1220, 1300, 1445, 1525, 1586, 1700, 2074, 2210, 2890, 3050, 3172, 3757, 3965, 4148, 4420, 4913, 5185, 5525, 5780, 6100, 7225, 7514, 7930, 9826, 10370, 11050, 13481, 14450, 15028, 15860, 17629, 18785, 19652, 19825, 20740, 22100, 24565, 25925, 26962, 28900, 35258, 37570, 39650, 49130, 51850, 53924, 63869, 67405, 70516, 75140, 79300, 88145, 93925, 98260, 103700, 122825, 127738, 134810, 176290, 187850, 229177, 245650, 255476, 269620, 299693, 319345, 337025, 352580, 375700, 440725, 458354, 491300, 599386, 638690, 674050, 881450, 916708, 1145885, 1198772, 1277380, 1348100, 1498465, 1596725, 1762900, 2291770, 2996930, 3193450, 3896009, 4583540, 5729425, 5993860, 6386900, 7492325, 7792018, 11458850, 14984650, 15584036, 19480045, 22917700, 29969300, 38960090, 77920180, 97400225, 194800450, 389600900]

約数ペア:

[(1, 389600900), (2, 194800450), (4, 97400225), (5, 77920180), (10, 38960090), (13, 29969300), (17, 22917700), (20, 19480045), (25, 15584036), (26, 14984650), (34, 11458850), (50, 7792018), (52, 7492325), (61, 6386900), (65, 5993860), (68, 5729425), (85, 4583540), (100, 3896009), (122, 3193450), (130, 2996930), (170, 2291770), (221, 1762900), (244, 1596725), (260, 1498465), (289, 1348100), (305, 1277380), (325, 1198772), (340, 1145885), (425, 916708), (442, 881450), (578, 674050), (610, 638690), (650, 599386), (793, 491300), (850, 458354), (884, 440725), (1037, 375700), (1105, 352580), (1156, 337025), (1220, 319345), (1300, 299693), (1445, 269620), (1525, 255476), (1586, 245650), (1700, 229177), (2074, 187850), (2210, 176290), (2890, 134810), (3050, 127738), (3172, 122825), (3757, 103700), (3965, 98260), (4148, 93925), (4420, 88145), (4913, 79300), (5185, 75140), (5525, 70516), (5780, 67405), (6100, 63869), (7225, 53924), (7514, 51850), (7930, 49130), (9826, 39650), (10370, 37570), (11050, 35258), (13481, 28900), (14450, 26962), (15028, 25925), (15860, 24565), (17629, 22100), (18785, 20740), (19652, 19825)]