31690720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:284

約数の個数: 96

約数和(自身を含む): 80994816

約数和(自身を除く): 49304096

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 61, 68, 80, 85, 122, 136, 160, 170, 191, 244, 272, 305, 340, 382, 488, 544, 610, 680, 764, 955, 976, 1037, 1220, 1360, 1528, 1910, 1952, 2074, 2440, 2720, 3056, 3247, 3820, 4148, 4880, 5185, 6112, 6494, 7640, 8296, 9760, 10370, 11651, 12988, 15280, 16235, 16592, 20740, 23302, 25976, 30560, 32470, 33184, 41480, 46604, 51952, 58255, 64940, 82960, 93208, 103904, 116510, 129880, 165920, 186416, 198067, 233020, 259760, 372832, 396134, 466040, 519520, 792268, 932080, 990335, 1584536, 1864160, 1980670, 3169072, 3961340, 6338144, 7922680, 15845360, 31690720]

約数ペア:

[(1, 31690720), (2, 15845360), (4, 7922680), (5, 6338144), (8, 3961340), (10, 3169072), (16, 1980670), (17, 1864160), (20, 1584536), (32, 990335), (34, 932080), (40, 792268), (61, 519520), (68, 466040), (80, 396134), (85, 372832), (122, 259760), (136, 233020), (160, 198067), (170, 186416), (191, 165920), (244, 129880), (272, 116510), (305, 103904), (340, 93208), (382, 82960), (488, 64940), (544, 58255), (610, 51952), (680, 46604), (764, 41480), (955, 33184), (976, 32470), (1037, 30560), (1220, 25976), (1360, 23302), (1528, 20740), (1910, 16592), (1952, 16235), (2074, 15280), (2440, 12988), (2720, 11651), (3056, 10370), (3247, 9760), (3820, 8296), (4148, 7640), (4880, 6494), (5185, 6112)]