4240720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:164

約数の個数: 80

約数和(自身を含む): 11070720

約数和(自身を除く): 6830000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 79, 80, 88, 110, 122, 158, 176, 220, 244, 305, 316, 395, 440, 488, 610, 632, 671, 790, 869, 880, 976, 1220, 1264, 1342, 1580, 1738, 2440, 2684, 3160, 3355, 3476, 4345, 4819, 4880, 5368, 6320, 6710, 6952, 8690, 9638, 10736, 13420, 13904, 17380, 19276, 24095, 26840, 34760, 38552, 48190, 53009, 53680, 69520, 77104, 96380, 106018, 192760, 212036, 265045, 385520, 424072, 530090, 848144, 1060180, 2120360, 4240720]

約数ペア:

[(1, 4240720), (2, 2120360), (4, 1060180), (5, 848144), (8, 530090), (10, 424072), (11, 385520), (16, 265045), (20, 212036), (22, 192760), (40, 106018), (44, 96380), (55, 77104), (61, 69520), (79, 53680), (80, 53009), (88, 48190), (110, 38552), (122, 34760), (158, 26840), (176, 24095), (220, 19276), (244, 17380), (305, 13904), (316, 13420), (395, 10736), (440, 9638), (488, 8690), (610, 6952), (632, 6710), (671, 6320), (790, 5368), (869, 4880), (880, 4819), (976, 4345), (1220, 3476), (1264, 3355), (1342, 3160), (1580, 2684), (1738, 2440)]