129387800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 96

約数和(自身を含む): 318729600

約数和(自身を除く): 189341800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 41, 50, 62, 82, 100, 124, 155, 164, 200, 205, 248, 310, 328, 410, 509, 620, 775, 820, 1018, 1025, 1240, 1271, 1550, 1640, 2036, 2050, 2542, 2545, 3100, 4072, 4100, 5084, 5090, 6200, 6355, 8200, 10168, 10180, 12710, 12725, 15779, 20360, 20869, 25420, 25450, 31558, 31775, 41738, 50840, 50900, 63116, 63550, 78895, 83476, 101800, 104345, 126232, 127100, 157790, 166952, 208690, 254200, 315580, 394475, 417380, 521725, 631160, 646939, 788950, 834760, 1043450, 1293878, 1577900, 2086900, 2587756, 3155800, 3234695, 4173800, 5175512, 6469390, 12938780, 16173475, 25877560, 32346950, 64693900, 129387800]

約数ペア:

[(1, 129387800), (2, 64693900), (4, 32346950), (5, 25877560), (8, 16173475), (10, 12938780), (20, 6469390), (25, 5175512), (31, 4173800), (40, 3234695), (41, 3155800), (50, 2587756), (62, 2086900), (82, 1577900), (100, 1293878), (124, 1043450), (155, 834760), (164, 788950), (200, 646939), (205, 631160), (248, 521725), (310, 417380), (328, 394475), (410, 315580), (509, 254200), (620, 208690), (775, 166952), (820, 157790), (1018, 127100), (1025, 126232), (1240, 104345), (1271, 101800), (1550, 83476), (1640, 78895), (2036, 63550), (2050, 63116), (2542, 50900), (2545, 50840), (3100, 41738), (4072, 31775), (4100, 31558), (5084, 25450), (5090, 25420), (6200, 20869), (6355, 20360), (8200, 15779), (10168, 12725), (10180, 12710)]