40394380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 105144480

約数和(自身を除く): 64750100

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 37, 38, 52, 65, 68, 74, 76, 85, 95, 130, 148, 169, 170, 185, 190, 221, 247, 260, 323, 338, 340, 370, 380, 442, 481, 494, 629, 646, 676, 703, 740, 845, 884, 962, 988, 1105, 1235, 1258, 1292, 1406, 1615, 1690, 1924, 2210, 2405, 2470, 2516, 2812, 2873, 3145, 3211, 3230, 3380, 3515, 4199, 4420, 4810, 4940, 5746, 6253, 6290, 6422, 6460, 7030, 8177, 8398, 9139, 9620, 11492, 11951, 12506, 12580, 12844, 14060, 14365, 16055, 16354, 16796, 18278, 20995, 23902, 25012, 28730, 31265, 32110, 32708, 36556, 40885, 41990, 45695, 47804, 54587, 57460, 59755, 62530, 64220, 81770, 83980, 91390, 106301, 109174, 118807, 119510, 125060, 155363, 163540, 182780, 212602, 218348, 237614, 239020, 272935, 310726, 425204, 475228, 531505, 545870, 594035, 621452, 776815, 1063010, 1091740, 1188070, 1553630, 2019719, 2126020, 2376140, 3107260, 4039438, 8078876, 10098595, 20197190, 40394380]

約数ペア:

[(1, 40394380), (2, 20197190), (4, 10098595), (5, 8078876), (10, 4039438), (13, 3107260), (17, 2376140), (19, 2126020), (20, 2019719), (26, 1553630), (34, 1188070), (37, 1091740), (38, 1063010), (52, 776815), (65, 621452), (68, 594035), (74, 545870), (76, 531505), (85, 475228), (95, 425204), (130, 310726), (148, 272935), (169, 239020), (170, 237614), (185, 218348), (190, 212602), (221, 182780), (247, 163540), (260, 155363), (323, 125060), (338, 119510), (340, 118807), (370, 109174), (380, 106301), (442, 91390), (481, 83980), (494, 81770), (629, 64220), (646, 62530), (676, 59755), (703, 57460), (740, 54587), (845, 47804), (884, 45695), (962, 41990), (988, 40885), (1105, 36556), (1235, 32708), (1258, 32110), (1292, 31265), (1406, 28730), (1615, 25012), (1690, 23902), (1924, 20995), (2210, 18278), (2405, 16796), (2470, 16354), (2516, 16055), (2812, 14365), (2873, 14060), (3145, 12844), (3211, 12580), (3230, 12506), (3380, 11951), (3515, 11492), (4199, 9620), (4420, 9139), (4810, 8398), (4940, 8177), (5746, 7030), (6253, 6460), (6290, 6422)]