81245520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5939}}^1$

素因数の和:5977

約数の個数: 120

約数和(自身を含む): 287258400

約数和(自身を除く): 206012880

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, 5939, 6840, 11878, 13680, 17817, 23756, 29695, 35634, 47512, 53451, 59390, 71268, 89085, 95024, 106902, 112841, 118780, 142536, 178170, 213804, 225682, 237560, 267255, 285072, 338523, 356340, 427608, 451364, 475120, 534510, 564205, 677046, 712680, 855216, 902728, 1015569, 1069020, 1128410, 1354092, 1425360, 1692615, 1805456, 2031138, 2138040, 2256820, 2708184, 3385230, 4062276, 4276080, 4513640, 5077845, 5416368, 6770460, 8124552, 9027280, 10155690, 13540920, 16249104, 20311380, 27081840, 40622760, 81245520]

約数ペア:

[(1, 81245520), (2, 40622760), (3, 27081840), (4, 20311380), (5, 16249104), (6, 13540920), (8, 10155690), (9, 9027280), (10, 8124552), (12, 6770460), (15, 5416368), (16, 5077845), (18, 4513640), (19, 4276080), (20, 4062276), (24, 3385230), (30, 2708184), (36, 2256820), (38, 2138040), (40, 2031138), (45, 1805456), (48, 1692615), (57, 1425360), (60, 1354092), (72, 1128410), (76, 1069020), (80, 1015569), (90, 902728), (95, 855216), (114, 712680), (120, 677046), (144, 564205), (152, 534510), (171, 475120), (180, 451364), (190, 427608), (228, 356340), (240, 338523), (285, 285072), (304, 267255), (342, 237560), (360, 225682), (380, 213804), (456, 178170), (570, 142536), (684, 118780), (720, 112841), (760, 106902), (855, 95024), (912, 89085), (1140, 71268), (1368, 59390), (1520, 53451), (1710, 47512), (2280, 35634), (2736, 29695), (3420, 23756), (4560, 17817), (5939, 13680), (6840, 11878)]