16217960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 43545600

約数和(自身を除く): 27327640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 31, 40, 41, 44, 55, 58, 62, 82, 88, 110, 116, 124, 145, 155, 164, 205, 220, 232, 248, 290, 310, 319, 328, 341, 410, 440, 451, 580, 620, 638, 682, 820, 899, 902, 1160, 1189, 1240, 1271, 1276, 1364, 1595, 1640, 1705, 1798, 1804, 2255, 2378, 2542, 2552, 2728, 3190, 3410, 3596, 3608, 4495, 4510, 4756, 5084, 5945, 6355, 6380, 6820, 7192, 8990, 9020, 9512, 9889, 10168, 11890, 12710, 12760, 13079, 13640, 13981, 17980, 18040, 19778, 23780, 25420, 26158, 27962, 35960, 36859, 39556, 47560, 49445, 50840, 52316, 55924, 65395, 69905, 73718, 79112, 98890, 104632, 111848, 130790, 139810, 147436, 184295, 197780, 261580, 279620, 294872, 368590, 395560, 405449, 523160, 559240, 737180, 810898, 1474360, 1621796, 2027245, 3243592, 4054490, 8108980, 16217960]

約数ペア:

[(1, 16217960), (2, 8108980), (4, 4054490), (5, 3243592), (8, 2027245), (10, 1621796), (11, 1474360), (20, 810898), (22, 737180), (29, 559240), (31, 523160), (40, 405449), (41, 395560), (44, 368590), (55, 294872), (58, 279620), (62, 261580), (82, 197780), (88, 184295), (110, 147436), (116, 139810), (124, 130790), (145, 111848), (155, 104632), (164, 98890), (205, 79112), (220, 73718), (232, 69905), (248, 65395), (290, 55924), (310, 52316), (319, 50840), (328, 49445), (341, 47560), (410, 39556), (440, 36859), (451, 35960), (580, 27962), (620, 26158), (638, 25420), (682, 23780), (820, 19778), (899, 18040), (902, 17980), (1160, 13981), (1189, 13640), (1240, 13079), (1271, 12760), (1276, 12710), (1364, 11890), (1595, 10168), (1640, 9889), (1705, 9512), (1798, 9020), (1804, 8990), (2255, 7192), (2378, 6820), (2542, 6380), (2552, 6355), (2728, 5945), (3190, 5084), (3410, 4756), (3596, 4510), (3608, 4495)]