28090480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:394

約数の個数: 80

約数和(自身を含む): 72075744

約数和(自身を除く): 43985264

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 137, 176, 220, 233, 274, 440, 466, 548, 685, 880, 932, 1096, 1165, 1370, 1507, 1864, 2192, 2330, 2563, 2740, 3014, 3728, 4660, 5126, 5480, 6028, 7535, 9320, 10252, 10960, 12056, 12815, 15070, 18640, 20504, 24112, 25630, 30140, 31921, 41008, 51260, 60280, 63842, 102520, 120560, 127684, 159605, 205040, 255368, 319210, 351131, 510736, 638420, 702262, 1276840, 1404524, 1755655, 2553680, 2809048, 3511310, 5618096, 7022620, 14045240, 28090480]

約数ペア:

[(1, 28090480), (2, 14045240), (4, 7022620), (5, 5618096), (8, 3511310), (10, 2809048), (11, 2553680), (16, 1755655), (20, 1404524), (22, 1276840), (40, 702262), (44, 638420), (55, 510736), (80, 351131), (88, 319210), (110, 255368), (137, 205040), (176, 159605), (220, 127684), (233, 120560), (274, 102520), (440, 63842), (466, 60280), (548, 51260), (685, 41008), (880, 31921), (932, 30140), (1096, 25630), (1165, 24112), (1370, 20504), (1507, 18640), (1864, 15070), (2192, 12815), (2330, 12056), (2563, 10960), (2740, 10252), (3014, 9320), (3728, 7535), (4660, 6028), (5126, 5480)]