219069560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 525495600

約数和(自身を除く): 306426040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 139, 155, 164, 205, 248, 278, 310, 328, 410, 556, 620, 695, 820, 961, 1112, 1240, 1271, 1390, 1640, 1922, 2542, 2780, 3844, 4309, 4805, 5084, 5560, 5699, 6355, 7688, 8618, 9610, 10168, 11398, 12710, 17236, 19220, 21545, 22796, 25420, 28495, 34472, 38440, 39401, 43090, 45592, 50840, 56990, 78802, 86180, 113980, 133579, 157604, 172360, 176669, 197005, 227960, 267158, 315208, 353338, 394010, 534316, 667895, 706676, 788020, 883345, 1068632, 1335790, 1413352, 1576040, 1766690, 2671580, 3533380, 5343160, 5476739, 7066760, 10953478, 21906956, 27383695, 43813912, 54767390, 109534780, 219069560]

約数ペア:

[(1, 219069560), (2, 109534780), (4, 54767390), (5, 43813912), (8, 27383695), (10, 21906956), (20, 10953478), (31, 7066760), (40, 5476739), (41, 5343160), (62, 3533380), (82, 2671580), (124, 1766690), (139, 1576040), (155, 1413352), (164, 1335790), (205, 1068632), (248, 883345), (278, 788020), (310, 706676), (328, 667895), (410, 534316), (556, 394010), (620, 353338), (695, 315208), (820, 267158), (961, 227960), (1112, 197005), (1240, 176669), (1271, 172360), (1390, 157604), (1640, 133579), (1922, 113980), (2542, 86180), (2780, 78802), (3844, 56990), (4309, 50840), (4805, 45592), (5084, 43090), (5560, 39401), (5699, 38440), (6355, 34472), (7688, 28495), (8618, 25420), (9610, 22796), (10168, 21545), (11398, 19220), (12710, 17236)]