138207920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2423}}^1$

素因数の和:2490

約数の個数: 80

約数和(自身を含む): 346263552

約数和(自身を除く): 208055632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 40, 46, 62, 80, 92, 115, 124, 155, 184, 230, 248, 310, 368, 460, 496, 620, 713, 920, 1240, 1426, 1840, 2423, 2480, 2852, 3565, 4846, 5704, 7130, 9692, 11408, 12115, 14260, 19384, 24230, 28520, 38768, 48460, 55729, 57040, 75113, 96920, 111458, 150226, 193840, 222916, 278645, 300452, 375565, 445832, 557290, 600904, 751130, 891664, 1114580, 1201808, 1502260, 1727599, 2229160, 3004520, 3455198, 4458320, 6009040, 6910396, 8637995, 13820792, 17275990, 27641584, 34551980, 69103960, 138207920]

約数ペア:

[(1, 138207920), (2, 69103960), (4, 34551980), (5, 27641584), (8, 17275990), (10, 13820792), (16, 8637995), (20, 6910396), (23, 6009040), (31, 4458320), (40, 3455198), (46, 3004520), (62, 2229160), (80, 1727599), (92, 1502260), (115, 1201808), (124, 1114580), (155, 891664), (184, 751130), (230, 600904), (248, 557290), (310, 445832), (368, 375565), (460, 300452), (496, 278645), (620, 222916), (713, 193840), (920, 150226), (1240, 111458), (1426, 96920), (1840, 75113), (2423, 57040), (2480, 55729), (2852, 48460), (3565, 38768), (4846, 28520), (5704, 24230), (7130, 19384), (9692, 14260), (11408, 12115)]