217771920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{15919}}^1$

素因数の和:15957

約数の個数: 120

約数和(自身を含む): 769891200

約数和(自身を除く): 552119280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 15919, 31838, 47757, 63676, 79595, 95514, 127352, 143271, 159190, 191028, 238785, 254704, 286542, 302461, 318380, 382056, 477570, 573084, 604922, 636760, 716355, 764112, 907383, 955140, 1146168, 1209844, 1273520, 1432710, 1512305, 1814766, 1910280, 2292336, 2419688, 2722149, 2865420, 3024610, 3629532, 3820560, 4536915, 4839376, 5444298, 5730840, 6049220, 7259064, 9073830, 10888596, 11461680, 12098440, 13610745, 14518128, 18147660, 21777192, 24196880, 27221490, 36295320, 43554384, 54442980, 72590640, 108885960, 217771920]

約数ペア:

[(1, 217771920), (2, 108885960), (3, 72590640), (4, 54442980), (5, 43554384), (6, 36295320), (8, 27221490), (9, 24196880), (10, 21777192), (12, 18147660), (15, 14518128), (16, 13610745), (18, 12098440), (19, 11461680), (20, 10888596), (24, 9073830), (30, 7259064), (36, 6049220), (38, 5730840), (40, 5444298), (45, 4839376), (48, 4536915), (57, 3820560), (60, 3629532), (72, 3024610), (76, 2865420), (80, 2722149), (90, 2419688), (95, 2292336), (114, 1910280), (120, 1814766), (144, 1512305), (152, 1432710), (171, 1273520), (180, 1209844), (190, 1146168), (228, 955140), (240, 907383), (285, 764112), (304, 716355), (342, 636760), (360, 604922), (380, 573084), (456, 477570), (570, 382056), (684, 318380), (720, 302461), (760, 286542), (855, 254704), (912, 238785), (1140, 191028), (1368, 159190), (1520, 143271), (1710, 127352), (2280, 95514), (2736, 79595), (3420, 63676), (4560, 47757), (6840, 31838), (13680, 15919)]