81969160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3217}}^1$

素因数の和:3255

約数の個数: 96

約数和(自身を含む): 231116760

約数和(自身を除く): 149147600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 182, 196, 245, 260, 280, 364, 392, 455, 490, 520, 637, 728, 910, 980, 1274, 1820, 1960, 2548, 3185, 3217, 3640, 5096, 6370, 6434, 12740, 12868, 16085, 22519, 25480, 25736, 32170, 41821, 45038, 64340, 83642, 90076, 112595, 128680, 157633, 167284, 180152, 209105, 225190, 292747, 315266, 334568, 418210, 450380, 585494, 630532, 788165, 836420, 900760, 1170988, 1261064, 1463735, 1576330, 1672840, 2049229, 2341976, 2927470, 3152660, 4098458, 5854940, 6305320, 8196916, 10246145, 11709880, 16393832, 20492290, 40984580, 81969160]

約数ペア:

[(1, 81969160), (2, 40984580), (4, 20492290), (5, 16393832), (7, 11709880), (8, 10246145), (10, 8196916), (13, 6305320), (14, 5854940), (20, 4098458), (26, 3152660), (28, 2927470), (35, 2341976), (40, 2049229), (49, 1672840), (52, 1576330), (56, 1463735), (65, 1261064), (70, 1170988), (91, 900760), (98, 836420), (104, 788165), (130, 630532), (140, 585494), (182, 450380), (196, 418210), (245, 334568), (260, 315266), (280, 292747), (364, 225190), (392, 209105), (455, 180152), (490, 167284), (520, 157633), (637, 128680), (728, 112595), (910, 90076), (980, 83642), (1274, 64340), (1820, 45038), (1960, 41821), (2548, 32170), (3185, 25736), (3217, 25480), (3640, 22519), (5096, 16085), (6370, 12868), (6434, 12740)]