261595280

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:768

約数の個数: 80

約数和(自身を含む): 626745600

約数和(自身を除く): 365150320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 103, 106, 206, 212, 265, 412, 424, 515, 530, 599, 824, 848, 1030, 1060, 1198, 1648, 2060, 2120, 2396, 2995, 4120, 4240, 4792, 5459, 5990, 8240, 9584, 10918, 11980, 21836, 23960, 27295, 31747, 43672, 47920, 54590, 61697, 63494, 87344, 109180, 123394, 126988, 158735, 218360, 246788, 253976, 308485, 317470, 436720, 493576, 507952, 616970, 634940, 987152, 1233940, 1269880, 2467880, 2539760, 3269941, 4935760, 6539882, 13079764, 16349705, 26159528, 32699410, 52319056, 65398820, 130797640, 261595280]

約数ペア:

[(1, 261595280), (2, 130797640), (4, 65398820), (5, 52319056), (8, 32699410), (10, 26159528), (16, 16349705), (20, 13079764), (40, 6539882), (53, 4935760), (80, 3269941), (103, 2539760), (106, 2467880), (206, 1269880), (212, 1233940), (265, 987152), (412, 634940), (424, 616970), (515, 507952), (530, 493576), (599, 436720), (824, 317470), (848, 308485), (1030, 253976), (1060, 246788), (1198, 218360), (1648, 158735), (2060, 126988), (2120, 123394), (2396, 109180), (2995, 87344), (4120, 63494), (4240, 61697), (4792, 54590), (5459, 47920), (5990, 43672), (8240, 31747), (9584, 27295), (10918, 23960), (11980, 21836)]