621290320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1699}}^1$

素因数の和:2372

約数の個数: 80

約数和(自身を含む): 1654358400

約数和(自身を除く): 1033068080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 653, 1306, 1699, 2612, 3265, 3398, 4571, 5224, 6530, 6796, 8495, 9142, 10448, 11893, 13060, 13592, 16990, 18284, 22855, 23786, 26120, 27184, 33980, 36568, 45710, 47572, 52240, 59465, 67960, 73136, 91420, 95144, 118930, 135920, 182840, 190288, 237860, 365680, 475720, 951440, 1109447, 2218894, 4437788, 5547235, 7766129, 8875576, 11094470, 15532258, 17751152, 22188940, 31064516, 38830645, 44377880, 62129032, 77661290, 88755760, 124258064, 155322580, 310645160, 621290320]

約数ペア:

[(1, 621290320), (2, 310645160), (4, 155322580), (5, 124258064), (7, 88755760), (8, 77661290), (10, 62129032), (14, 44377880), (16, 38830645), (20, 31064516), (28, 22188940), (35, 17751152), (40, 15532258), (56, 11094470), (70, 8875576), (80, 7766129), (112, 5547235), (140, 4437788), (280, 2218894), (560, 1109447), (653, 951440), (1306, 475720), (1699, 365680), (2612, 237860), (3265, 190288), (3398, 182840), (4571, 135920), (5224, 118930), (6530, 95144), (6796, 91420), (8495, 73136), (9142, 67960), (10448, 59465), (11893, 52240), (13060, 47572), (13592, 45710), (16990, 36568), (18284, 33980), (22855, 27184), (23786, 26120)]