64321840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3847}}^1$

素因数の和:3890

約数の個数: 80

約数和(自身を含む): 171774720

約数和(自身を除く): 107452880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 3847, 4180, 7694, 8360, 15388, 16720, 19235, 30776, 38470, 42317, 61552, 73093, 76940, 84634, 146186, 153880, 169268, 211585, 292372, 307760, 338536, 365465, 423170, 584744, 677072, 730930, 804023, 846340, 1169488, 1461860, 1608046, 1692680, 2923720, 3216092, 3385360, 4020115, 5847440, 6432184, 8040230, 12864368, 16080460, 32160920, 64321840]

約数ペア:

[(1, 64321840), (2, 32160920), (4, 16080460), (5, 12864368), (8, 8040230), (10, 6432184), (11, 5847440), (16, 4020115), (19, 3385360), (20, 3216092), (22, 2923720), (38, 1692680), (40, 1608046), (44, 1461860), (55, 1169488), (76, 846340), (80, 804023), (88, 730930), (95, 677072), (110, 584744), (152, 423170), (176, 365465), (190, 338536), (209, 307760), (220, 292372), (304, 211585), (380, 169268), (418, 153880), (440, 146186), (760, 84634), (836, 76940), (880, 73093), (1045, 61552), (1520, 42317), (1672, 38470), (2090, 30776), (3344, 19235), (3847, 16720), (4180, 15388), (7694, 8360)]