18011620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 96

約数和(自身を含む): 45158400

約数和(自身を除く): 27146780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 31, 38, 44, 55, 62, 76, 95, 110, 124, 139, 155, 190, 209, 220, 278, 310, 341, 380, 418, 556, 589, 620, 682, 695, 836, 1045, 1178, 1364, 1390, 1529, 1705, 2090, 2356, 2641, 2780, 2945, 3058, 3410, 4180, 4309, 5282, 5890, 6116, 6479, 6820, 7645, 8618, 10564, 11780, 12958, 13205, 15290, 17236, 21545, 25916, 26410, 29051, 30580, 32395, 43090, 47399, 52820, 58102, 64790, 81871, 86180, 94798, 116204, 129580, 145255, 163742, 189596, 236995, 290510, 327484, 409355, 473990, 581020, 818710, 900581, 947980, 1637420, 1801162, 3602324, 4502905, 9005810, 18011620]

約数ペア:

[(1, 18011620), (2, 9005810), (4, 4502905), (5, 3602324), (10, 1801162), (11, 1637420), (19, 947980), (20, 900581), (22, 818710), (31, 581020), (38, 473990), (44, 409355), (55, 327484), (62, 290510), (76, 236995), (95, 189596), (110, 163742), (124, 145255), (139, 129580), (155, 116204), (190, 94798), (209, 86180), (220, 81871), (278, 64790), (310, 58102), (341, 52820), (380, 47399), (418, 43090), (556, 32395), (589, 30580), (620, 29051), (682, 26410), (695, 25916), (836, 21545), (1045, 17236), (1178, 15290), (1364, 13205), (1390, 12958), (1529, 11780), (1705, 10564), (2090, 8618), (2356, 7645), (2641, 6820), (2780, 6479), (2945, 6116), (3058, 5890), (3410, 5282), (4180, 4309)]