1664080

素因数分解:

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

素因数の和:116

約数の個数: 80

約数和(自身を含む): 4428288

約数和(自身を除く): 2764208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 61, 62, 80, 88, 110, 122, 124, 155, 176, 220, 244, 248, 305, 310, 341, 440, 488, 496, 610, 620, 671, 682, 880, 976, 1220, 1240, 1342, 1364, 1705, 1891, 2440, 2480, 2684, 2728, 3355, 3410, 3782, 4880, 5368, 5456, 6710, 6820, 7564, 9455, 10736, 13420, 13640, 15128, 18910, 20801, 26840, 27280, 30256, 37820, 41602, 53680, 75640, 83204, 104005, 151280, 166408, 208010, 332816, 416020, 832040, 1664080]

約数ペア:

[(1, 1664080), (2, 832040), (4, 416020), (5, 332816), (8, 208010), (10, 166408), (11, 151280), (16, 104005), (20, 83204), (22, 75640), (31, 53680), (40, 41602), (44, 37820), (55, 30256), (61, 27280), (62, 26840), (80, 20801), (88, 18910), (110, 15128), (122, 13640), (124, 13420), (155, 10736), (176, 9455), (220, 7564), (244, 6820), (248, 6710), (305, 5456), (310, 5368), (341, 4880), (440, 3782), (488, 3410), (496, 3355), (610, 2728), (620, 2684), (671, 2480), (682, 2440), (880, 1891), (976, 1705), (1220, 1364), (1240, 1342)]