20701792

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22843808

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 79, 152, 158, 304, 316, 431, 608, 632, 862, 1264, 1501, 1724, 2528, 3002, 3448, 6004, 6896, 8189, 12008, 13792, 16378, 24016, 32756, 34049, 48032, 65512, 68098, 131024, 136196, 262048, 272392, 544784, 646931, 1089568, 1293862, 2587724, 5175448, 10350896, 20701792]

約数ペア:

[(1, 20701792), (2, 10350896), (4, 5175448), (8, 2587724), (16, 1293862), (19, 1089568), (32, 646931), (38, 544784), (76, 272392), (79, 262048), (152, 136196), (158, 131024), (304, 68098), (316, 65512), (431, 48032), (608, 34049), (632, 32756), (862, 24016), (1264, 16378), (1501, 13792), (1724, 12008), (2528, 8189), (3002, 6896), (3448, 6004)]