61490440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 160704000

約数和(自身を除く): 99213560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 61, 79, 88, 110, 116, 122, 145, 158, 220, 232, 244, 290, 305, 316, 319, 395, 440, 488, 580, 610, 632, 638, 671, 790, 869, 1160, 1220, 1276, 1342, 1580, 1595, 1738, 1769, 2291, 2440, 2552, 2684, 3160, 3190, 3355, 3476, 3538, 4345, 4582, 4819, 5368, 6380, 6710, 6952, 7076, 8690, 8845, 9164, 9638, 11455, 12760, 13420, 14152, 17380, 17690, 18328, 19276, 19459, 22910, 24095, 25201, 26840, 34760, 35380, 38552, 38918, 45820, 48190, 50402, 53009, 70760, 77836, 91640, 96380, 97295, 100804, 106018, 126005, 139751, 155672, 192760, 194590, 201608, 212036, 252010, 265045, 279502, 389180, 424072, 504020, 530090, 559004, 698755, 778360, 1008040, 1060180, 1118008, 1397510, 1537261, 2120360, 2795020, 3074522, 5590040, 6149044, 7686305, 12298088, 15372610, 30745220, 61490440]

約数ペア:

[(1, 61490440), (2, 30745220), (4, 15372610), (5, 12298088), (8, 7686305), (10, 6149044), (11, 5590040), (20, 3074522), (22, 2795020), (29, 2120360), (40, 1537261), (44, 1397510), (55, 1118008), (58, 1060180), (61, 1008040), (79, 778360), (88, 698755), (110, 559004), (116, 530090), (122, 504020), (145, 424072), (158, 389180), (220, 279502), (232, 265045), (244, 252010), (290, 212036), (305, 201608), (316, 194590), (319, 192760), (395, 155672), (440, 139751), (488, 126005), (580, 106018), (610, 100804), (632, 97295), (638, 96380), (671, 91640), (790, 77836), (869, 70760), (1160, 53009), (1220, 50402), (1276, 48190), (1342, 45820), (1580, 38918), (1595, 38552), (1738, 35380), (1769, 34760), (2291, 26840), (2440, 25201), (2552, 24095), (2684, 22910), (3160, 19459), (3190, 19276), (3355, 18328), (3476, 17690), (3538, 17380), (4345, 14152), (4582, 13420), (4819, 12760), (5368, 11455), (6380, 9638), (6710, 9164), (6952, 8845), (7076, 8690)]