42409900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 111555360

約数和(自身を除く): 69145460

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 25, 26, 34, 38, 50, 52, 65, 68, 76, 85, 95, 100, 101, 130, 170, 190, 202, 221, 247, 260, 323, 325, 340, 380, 404, 425, 442, 475, 494, 505, 646, 650, 850, 884, 950, 988, 1010, 1105, 1235, 1292, 1300, 1313, 1615, 1700, 1717, 1900, 1919, 2020, 2210, 2470, 2525, 2626, 3230, 3434, 3838, 4199, 4420, 4940, 5050, 5252, 5525, 6175, 6460, 6565, 6868, 7676, 8075, 8398, 8585, 9595, 10100, 11050, 12350, 13130, 16150, 16796, 17170, 19190, 20995, 22100, 22321, 24700, 24947, 26260, 32300, 32623, 32825, 34340, 38380, 41990, 42925, 44642, 47975, 49894, 65246, 65650, 83980, 85850, 89284, 95950, 99788, 104975, 111605, 124735, 130492, 131300, 163115, 171700, 191900, 209950, 223210, 249470, 326230, 419900, 424099, 446420, 498940, 558025, 623675, 652460, 815575, 848198, 1116050, 1247350, 1631150, 1696396, 2120495, 2232100, 2494700, 3262300, 4240990, 8481980, 10602475, 21204950, 42409900]

約数ペア:

[(1, 42409900), (2, 21204950), (4, 10602475), (5, 8481980), (10, 4240990), (13, 3262300), (17, 2494700), (19, 2232100), (20, 2120495), (25, 1696396), (26, 1631150), (34, 1247350), (38, 1116050), (50, 848198), (52, 815575), (65, 652460), (68, 623675), (76, 558025), (85, 498940), (95, 446420), (100, 424099), (101, 419900), (130, 326230), (170, 249470), (190, 223210), (202, 209950), (221, 191900), (247, 171700), (260, 163115), (323, 131300), (325, 130492), (340, 124735), (380, 111605), (404, 104975), (425, 99788), (442, 95950), (475, 89284), (494, 85850), (505, 83980), (646, 65650), (650, 65246), (850, 49894), (884, 47975), (950, 44642), (988, 42925), (1010, 41990), (1105, 38380), (1235, 34340), (1292, 32825), (1300, 32623), (1313, 32300), (1615, 26260), (1700, 24947), (1717, 24700), (1900, 22321), (1919, 22100), (2020, 20995), (2210, 19190), (2470, 17170), (2525, 16796), (2626, 16150), (3230, 13130), (3434, 12350), (3838, 11050), (4199, 10100), (4420, 9595), (4940, 8585), (5050, 8398), (5252, 8075), (5525, 7676), (6175, 6868), (6460, 6565)]