15808760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:133

約数の個数: 128

約数和(自身を含む): 42854400

約数和(自身を除く): 27045640

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 31, 38, 40, 44, 55, 61, 62, 76, 88, 95, 110, 122, 124, 152, 155, 190, 209, 220, 244, 248, 305, 310, 341, 380, 418, 440, 488, 589, 610, 620, 671, 682, 760, 836, 1045, 1159, 1178, 1220, 1240, 1342, 1364, 1672, 1705, 1891, 2090, 2318, 2356, 2440, 2684, 2728, 2945, 3355, 3410, 3782, 4180, 4636, 4712, 5368, 5795, 5890, 6479, 6710, 6820, 7564, 8360, 9272, 9455, 11590, 11780, 12749, 12958, 13420, 13640, 15128, 18910, 20801, 23180, 23560, 25498, 25916, 26840, 32395, 35929, 37820, 41602, 46360, 50996, 51832, 63745, 64790, 71858, 75640, 83204, 101992, 104005, 127490, 129580, 143716, 166408, 179645, 208010, 254980, 259160, 287432, 359290, 395219, 416020, 509960, 718580, 790438, 832040, 1437160, 1580876, 1976095, 3161752, 3952190, 7904380, 15808760]

約数ペア:

[(1, 15808760), (2, 7904380), (4, 3952190), (5, 3161752), (8, 1976095), (10, 1580876), (11, 1437160), (19, 832040), (20, 790438), (22, 718580), (31, 509960), (38, 416020), (40, 395219), (44, 359290), (55, 287432), (61, 259160), (62, 254980), (76, 208010), (88, 179645), (95, 166408), (110, 143716), (122, 129580), (124, 127490), (152, 104005), (155, 101992), (190, 83204), (209, 75640), (220, 71858), (244, 64790), (248, 63745), (305, 51832), (310, 50996), (341, 46360), (380, 41602), (418, 37820), (440, 35929), (488, 32395), (589, 26840), (610, 25916), (620, 25498), (671, 23560), (682, 23180), (760, 20801), (836, 18910), (1045, 15128), (1159, 13640), (1178, 13420), (1220, 12958), (1240, 12749), (1342, 11780), (1364, 11590), (1672, 9455), (1705, 9272), (1891, 8360), (2090, 7564), (2318, 6820), (2356, 6710), (2440, 6479), (2684, 5890), (2728, 5795), (2945, 5368), (3355, 4712), (3410, 4636), (3782, 4180)]