78211760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:163

約数の個数: 160

約数和(自身を含む): 212557824

約数和(自身を除く): 134346064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 47, 55, 61, 62, 80, 88, 94, 110, 122, 124, 155, 176, 188, 220, 235, 244, 248, 305, 310, 341, 376, 440, 470, 488, 496, 517, 610, 620, 671, 682, 752, 880, 940, 976, 1034, 1220, 1240, 1342, 1364, 1457, 1705, 1880, 1891, 2068, 2440, 2480, 2585, 2684, 2728, 2867, 2914, 3355, 3410, 3760, 3782, 4136, 4880, 5170, 5368, 5456, 5734, 5828, 6710, 6820, 7285, 7564, 8272, 9455, 10340, 10736, 11468, 11656, 13420, 13640, 14335, 14570, 15128, 16027, 18910, 20680, 20801, 22936, 23312, 26840, 27280, 28670, 29140, 30256, 31537, 32054, 37820, 41360, 41602, 45872, 53680, 57340, 58280, 63074, 64108, 75640, 80135, 83204, 88877, 104005, 114680, 116560, 126148, 128216, 151280, 157685, 160270, 166408, 177754, 208010, 229360, 252296, 256432, 315370, 320540, 332816, 355508, 416020, 444385, 504592, 630740, 641080, 711016, 832040, 888770, 977647, 1261480, 1282160, 1422032, 1664080, 1777540, 1955294, 2522960, 3555080, 3910588, 4888235, 7110160, 7821176, 9776470, 15642352, 19552940, 39105880, 78211760]

約数ペア:

[(1, 78211760), (2, 39105880), (4, 19552940), (5, 15642352), (8, 9776470), (10, 7821176), (11, 7110160), (16, 4888235), (20, 3910588), (22, 3555080), (31, 2522960), (40, 1955294), (44, 1777540), (47, 1664080), (55, 1422032), (61, 1282160), (62, 1261480), (80, 977647), (88, 888770), (94, 832040), (110, 711016), (122, 641080), (124, 630740), (155, 504592), (176, 444385), (188, 416020), (220, 355508), (235, 332816), (244, 320540), (248, 315370), (305, 256432), (310, 252296), (341, 229360), (376, 208010), (440, 177754), (470, 166408), (488, 160270), (496, 157685), (517, 151280), (610, 128216), (620, 126148), (671, 116560), (682, 114680), (752, 104005), (880, 88877), (940, 83204), (976, 80135), (1034, 75640), (1220, 64108), (1240, 63074), (1342, 58280), (1364, 57340), (1457, 53680), (1705, 45872), (1880, 41602), (1891, 41360), (2068, 37820), (2440, 32054), (2480, 31537), (2585, 30256), (2684, 29140), (2728, 28670), (2867, 27280), (2914, 26840), (3355, 23312), (3410, 22936), (3760, 20801), (3782, 20680), (4136, 18910), (4880, 16027), (5170, 15128), (5368, 14570), (5456, 14335), (5734, 13640), (5828, 13420), (6710, 11656), (6820, 11468), (7285, 10736), (7564, 10340), (8272, 9455)]