639035325

素因数分解:

$3^5\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2843}}^1$

素因数の和:2905

約数の個数: 72

約数和(自身を含む): 1219484448

約数和(自身を除く): 580449123

約数列:

[1, 3, 5, 9, 15, 25, 27, 37, 45, 75, 81, 111, 135, 185, 225, 243, 333, 405, 555, 675, 925, 999, 1215, 1665, 2025, 2775, 2843, 2997, 4995, 6075, 8325, 8529, 8991, 14215, 14985, 24975, 25587, 42645, 44955, 71075, 74925, 76761, 105191, 127935, 213225, 224775, 230283, 315573, 383805, 525955, 639675, 690849, 946719, 1151415, 1577865, 1919025, 2629775, 2840157, 3454245, 4733595, 5757075, 7889325, 8520471, 14200785, 17271225, 23667975, 25561413, 42602355, 71003925, 127807065, 213011775, 639035325]

約数ペア:

[(1, 639035325), (3, 213011775), (5, 127807065), (9, 71003925), (15, 42602355), (25, 25561413), (27, 23667975), (37, 17271225), (45, 14200785), (75, 8520471), (81, 7889325), (111, 5757075), (135, 4733595), (185, 3454245), (225, 2840157), (243, 2629775), (333, 1919025), (405, 1577865), (555, 1151415), (675, 946719), (925, 690849), (999, 639675), (1215, 525955), (1665, 383805), (2025, 315573), (2775, 230283), (2843, 224775), (2997, 213225), (4995, 127935), (6075, 105191), (8325, 76761), (8529, 74925), (8991, 71075), (14215, 44955), (14985, 42645), (24975, 25587)]