515872240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16001}}^1$

素因数の和:16058

約数の個数: 80

約数和(自身を含む): 1333414656

約数和(自身を除く): 817542416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16001, 16120, 32002, 32240, 64004, 80005, 128008, 160010, 208013, 256016, 320020, 416026, 496031, 640040, 832052, 992062, 1040065, 1280080, 1664104, 1984124, 2080130, 2480155, 3328208, 3968248, 4160260, 4960310, 6448403, 7936496, 8320520, 9920620, 12896806, 16641040, 19841240, 25793612, 32242015, 39682480, 51587224, 64484030, 103174448, 128968060, 257936120, 515872240]

約数ペア:

[(1, 515872240), (2, 257936120), (4, 128968060), (5, 103174448), (8, 64484030), (10, 51587224), (13, 39682480), (16, 32242015), (20, 25793612), (26, 19841240), (31, 16641040), (40, 12896806), (52, 9920620), (62, 8320520), (65, 7936496), (80, 6448403), (104, 4960310), (124, 4160260), (130, 3968248), (155, 3328208), (208, 2480155), (248, 2080130), (260, 1984124), (310, 1664104), (403, 1280080), (496, 1040065), (520, 992062), (620, 832052), (806, 640040), (1040, 496031), (1240, 416026), (1612, 320020), (2015, 256016), (2480, 208013), (3224, 160010), (4030, 128008), (6448, 80005), (8060, 64004), (16001, 32240), (16120, 32002)]