78605800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:660

約数の個数: 144

約数和(自身を含む): 229321260

約数和(自身を除く): 150715460

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 130, 140, 175, 182, 196, 200, 245, 260, 280, 325, 350, 364, 392, 455, 490, 520, 617, 637, 650, 700, 728, 910, 980, 1225, 1234, 1274, 1300, 1400, 1820, 1960, 2275, 2450, 2468, 2548, 2600, 3085, 3185, 3640, 4319, 4550, 4900, 4936, 5096, 6170, 6370, 8021, 8638, 9100, 9800, 12340, 12740, 15425, 15925, 16042, 17276, 18200, 21595, 24680, 25480, 30233, 30850, 31850, 32084, 34552, 40105, 43190, 56147, 60466, 61700, 63700, 64168, 80210, 86380, 107975, 112294, 120932, 123400, 127400, 151165, 160420, 172760, 200525, 215950, 224588, 241864, 280735, 302330, 320840, 393029, 401050, 431900, 449176, 561470, 604660, 755825, 786058, 802100, 863800, 1122940, 1209320, 1403675, 1511650, 1572116, 1604200, 1965145, 2245880, 2807350, 3023300, 3144232, 3930290, 5614700, 6046600, 7860580, 9825725, 11229400, 15721160, 19651450, 39302900, 78605800]

約数ペア:

[(1, 78605800), (2, 39302900), (4, 19651450), (5, 15721160), (7, 11229400), (8, 9825725), (10, 7860580), (13, 6046600), (14, 5614700), (20, 3930290), (25, 3144232), (26, 3023300), (28, 2807350), (35, 2245880), (40, 1965145), (49, 1604200), (50, 1572116), (52, 1511650), (56, 1403675), (65, 1209320), (70, 1122940), (91, 863800), (98, 802100), (100, 786058), (104, 755825), (130, 604660), (140, 561470), (175, 449176), (182, 431900), (196, 401050), (200, 393029), (245, 320840), (260, 302330), (280, 280735), (325, 241864), (350, 224588), (364, 215950), (392, 200525), (455, 172760), (490, 160420), (520, 151165), (617, 127400), (637, 123400), (650, 120932), (700, 112294), (728, 107975), (910, 86380), (980, 80210), (1225, 64168), (1234, 63700), (1274, 61700), (1300, 60466), (1400, 56147), (1820, 43190), (1960, 40105), (2275, 34552), (2450, 32084), (2468, 31850), (2548, 30850), (2600, 30233), (3085, 25480), (3185, 24680), (3640, 21595), (4319, 18200), (4550, 17276), (4900, 16042), (4936, 15925), (5096, 15425), (6170, 12740), (6370, 12340), (8021, 9800), (8638, 9100)]