39890500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:87

約数の個数: 144

約数和(自身を含む): 104845104

約数和(自身を除く): 64954604

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 25, 26, 34, 38, 50, 52, 65, 68, 76, 85, 95, 100, 125, 130, 170, 190, 221, 247, 250, 260, 323, 325, 340, 361, 380, 425, 442, 475, 494, 500, 646, 650, 722, 850, 884, 950, 988, 1105, 1235, 1292, 1300, 1444, 1615, 1625, 1700, 1805, 1900, 2125, 2210, 2375, 2470, 3230, 3250, 3610, 4199, 4250, 4420, 4693, 4750, 4940, 5525, 6137, 6175, 6460, 6500, 7220, 8075, 8398, 8500, 9025, 9386, 9500, 11050, 12274, 12350, 16150, 16796, 18050, 18772, 20995, 22100, 23465, 24548, 24700, 27625, 30685, 30875, 32300, 36100, 40375, 41990, 45125, 46930, 55250, 61370, 61750, 79781, 80750, 83980, 90250, 93860, 104975, 110500, 117325, 122740, 123500, 153425, 159562, 161500, 180500, 209950, 234650, 306850, 319124, 398905, 419900, 469300, 524875, 586625, 613700, 767125, 797810, 1049750, 1173250, 1534250, 1595620, 1994525, 2099500, 2346500, 3068500, 3989050, 7978100, 9972625, 19945250, 39890500]

約数ペア:

[(1, 39890500), (2, 19945250), (4, 9972625), (5, 7978100), (10, 3989050), (13, 3068500), (17, 2346500), (19, 2099500), (20, 1994525), (25, 1595620), (26, 1534250), (34, 1173250), (38, 1049750), (50, 797810), (52, 767125), (65, 613700), (68, 586625), (76, 524875), (85, 469300), (95, 419900), (100, 398905), (125, 319124), (130, 306850), (170, 234650), (190, 209950), (221, 180500), (247, 161500), (250, 159562), (260, 153425), (323, 123500), (325, 122740), (340, 117325), (361, 110500), (380, 104975), (425, 93860), (442, 90250), (475, 83980), (494, 80750), (500, 79781), (646, 61750), (650, 61370), (722, 55250), (850, 46930), (884, 45125), (950, 41990), (988, 40375), (1105, 36100), (1235, 32300), (1292, 30875), (1300, 30685), (1444, 27625), (1615, 24700), (1625, 24548), (1700, 23465), (1805, 22100), (1900, 20995), (2125, 18772), (2210, 18050), (2375, 16796), (2470, 16150), (3230, 12350), (3250, 12274), (3610, 11050), (4199, 9500), (4250, 9386), (4420, 9025), (4693, 8500), (4750, 8398), (4940, 8075), (5525, 7220), (6137, 6500), (6175, 6460)]