1815213680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{3373}}^1$

素因数の和:3455

約数の個数: 120

約数和(自身を含む): 4985368416

約数和(自身を除く): 3170154736

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 961, 1085, 1240, 1736, 1922, 2170, 2480, 3373, 3472, 3844, 4340, 4805, 6727, 6746, 7688, 8680, 9610, 13454, 13492, 15376, 16865, 17360, 19220, 23611, 26908, 26984, 33635, 33730, 38440, 47222, 53816, 53968, 67270, 67460, 76880, 94444, 104563, 107632, 118055, 134540, 134920, 188888, 209126, 236110, 269080, 269840, 377776, 418252, 472220, 522815, 538160, 731941, 836504, 944440, 1045630, 1463882, 1673008, 1888880, 2091260, 2927764, 3241453, 3659705, 4182520, 5855528, 6482906, 7319410, 8365040, 11711056, 12965812, 14638820, 16207265, 22690171, 25931624, 29277640, 32414530, 45380342, 51863248, 58555280, 64829060, 90760684, 113450855, 129658120, 181521368, 226901710, 259316240, 363042736, 453803420, 907606840, 1815213680]

約数ペア:

[(1, 1815213680), (2, 907606840), (4, 453803420), (5, 363042736), (7, 259316240), (8, 226901710), (10, 181521368), (14, 129658120), (16, 113450855), (20, 90760684), (28, 64829060), (31, 58555280), (35, 51863248), (40, 45380342), (56, 32414530), (62, 29277640), (70, 25931624), (80, 22690171), (112, 16207265), (124, 14638820), (140, 12965812), (155, 11711056), (217, 8365040), (248, 7319410), (280, 6482906), (310, 5855528), (434, 4182520), (496, 3659705), (560, 3241453), (620, 2927764), (868, 2091260), (961, 1888880), (1085, 1673008), (1240, 1463882), (1736, 1045630), (1922, 944440), (2170, 836504), (2480, 731941), (3373, 538160), (3472, 522815), (3844, 472220), (4340, 418252), (4805, 377776), (6727, 269840), (6746, 269080), (7688, 236110), (8680, 209126), (9610, 188888), (13454, 134920), (13492, 134540), (15376, 118055), (16865, 107632), (17360, 104563), (19220, 94444), (23611, 76880), (26908, 67460), (26984, 67270), (33635, 53968), (33730, 53816), (38440, 47222)]