64577320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{367}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 150232320

約数和(自身を除く): 85655000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 83, 106, 166, 212, 265, 332, 367, 415, 424, 530, 664, 734, 830, 1060, 1468, 1660, 1835, 2120, 2936, 3320, 3670, 4399, 7340, 8798, 14680, 17596, 19451, 21995, 30461, 35192, 38902, 43990, 60922, 77804, 87980, 97255, 121844, 152305, 155608, 175960, 194510, 243688, 304610, 389020, 609220, 778040, 1218440, 1614433, 3228866, 6457732, 8072165, 12915464, 16144330, 32288660, 64577320]

約数ペア:

[(1, 64577320), (2, 32288660), (4, 16144330), (5, 12915464), (8, 8072165), (10, 6457732), (20, 3228866), (40, 1614433), (53, 1218440), (83, 778040), (106, 609220), (166, 389020), (212, 304610), (265, 243688), (332, 194510), (367, 175960), (415, 155608), (424, 152305), (530, 121844), (664, 97255), (734, 87980), (830, 77804), (1060, 60922), (1468, 43990), (1660, 38902), (1835, 35192), (2120, 30461), (2936, 21995), (3320, 19451), (3670, 17596), (4399, 14680), (7340, 8798)]