1966640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 80

約数和(自身を含む): 5166336

約数和(自身を除く): 3199696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 61, 62, 65, 80, 104, 122, 124, 130, 155, 208, 244, 248, 260, 305, 310, 403, 488, 496, 520, 610, 620, 793, 806, 976, 1040, 1220, 1240, 1586, 1612, 1891, 2015, 2440, 2480, 3172, 3224, 3782, 3965, 4030, 4880, 6344, 6448, 7564, 7930, 8060, 9455, 12688, 15128, 15860, 16120, 18910, 24583, 30256, 31720, 32240, 37820, 49166, 63440, 75640, 98332, 122915, 151280, 196664, 245830, 393328, 491660, 983320, 1966640]

約数ペア:

[(1, 1966640), (2, 983320), (4, 491660), (5, 393328), (8, 245830), (10, 196664), (13, 151280), (16, 122915), (20, 98332), (26, 75640), (31, 63440), (40, 49166), (52, 37820), (61, 32240), (62, 31720), (65, 30256), (80, 24583), (104, 18910), (122, 16120), (124, 15860), (130, 15128), (155, 12688), (208, 9455), (244, 8060), (248, 7930), (260, 7564), (305, 6448), (310, 6344), (403, 4880), (488, 4030), (496, 3965), (520, 3782), (610, 3224), (620, 3172), (793, 2480), (806, 2440), (976, 2015), (1040, 1891), (1220, 1612), (1240, 1586)]