15864940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 42900480

約数和(自身を除く): 27035540

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 379, 455, 460, 598, 644, 758, 805, 910, 1196, 1495, 1516, 1610, 1820, 1895, 2093, 2653, 2990, 3220, 3790, 4186, 4927, 5306, 5980, 7580, 8372, 8717, 9854, 10465, 10612, 13265, 17434, 19708, 20930, 24635, 26530, 34489, 34868, 41860, 43585, 49270, 53060, 61019, 68978, 87170, 98540, 113321, 122038, 137956, 172445, 174340, 226642, 244076, 305095, 344890, 453284, 566605, 610190, 689780, 793247, 1133210, 1220380, 1586494, 2266420, 3172988, 3966235, 7932470, 15864940]

約数ペア:

[(1, 15864940), (2, 7932470), (4, 3966235), (5, 3172988), (7, 2266420), (10, 1586494), (13, 1220380), (14, 1133210), (20, 793247), (23, 689780), (26, 610190), (28, 566605), (35, 453284), (46, 344890), (52, 305095), (65, 244076), (70, 226642), (91, 174340), (92, 172445), (115, 137956), (130, 122038), (140, 113321), (161, 98540), (182, 87170), (230, 68978), (260, 61019), (299, 53060), (322, 49270), (364, 43585), (379, 41860), (455, 34868), (460, 34489), (598, 26530), (644, 24635), (758, 20930), (805, 19708), (910, 17434), (1196, 13265), (1495, 10612), (1516, 10465), (1610, 9854), (1820, 8717), (1895, 8372), (2093, 7580), (2653, 5980), (2990, 5306), (3220, 4927), (3790, 4186)]