642960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:85

約数の個数: 120

約数和(自身を含む): 2321280

約数和(自身を除く): 1678320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 47, 48, 57, 60, 72, 76, 80, 90, 94, 95, 114, 120, 141, 144, 152, 171, 180, 188, 190, 228, 235, 240, 282, 285, 304, 342, 360, 376, 380, 423, 456, 470, 564, 570, 684, 705, 720, 752, 760, 846, 855, 893, 912, 940, 1128, 1140, 1368, 1410, 1520, 1692, 1710, 1786, 1880, 2115, 2256, 2280, 2679, 2736, 2820, 3384, 3420, 3572, 3760, 4230, 4465, 4560, 5358, 5640, 6768, 6840, 7144, 8037, 8460, 8930, 10716, 11280, 13395, 13680, 14288, 16074, 16920, 17860, 21432, 26790, 32148, 33840, 35720, 40185, 42864, 53580, 64296, 71440, 80370, 107160, 128592, 160740, 214320, 321480, 642960]

約数ペア:

[(1, 642960), (2, 321480), (3, 214320), (4, 160740), (5, 128592), (6, 107160), (8, 80370), (9, 71440), (10, 64296), (12, 53580), (15, 42864), (16, 40185), (18, 35720), (19, 33840), (20, 32148), (24, 26790), (30, 21432), (36, 17860), (38, 16920), (40, 16074), (45, 14288), (47, 13680), (48, 13395), (57, 11280), (60, 10716), (72, 8930), (76, 8460), (80, 8037), (90, 7144), (94, 6840), (95, 6768), (114, 5640), (120, 5358), (141, 4560), (144, 4465), (152, 4230), (171, 3760), (180, 3572), (188, 3420), (190, 3384), (228, 2820), (235, 2736), (240, 2679), (282, 2280), (285, 2256), (304, 2115), (342, 1880), (360, 1786), (376, 1710), (380, 1692), (423, 1520), (456, 1410), (470, 1368), (564, 1140), (570, 1128), (684, 940), (705, 912), (720, 893), (752, 855), (760, 846)]