65456440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1489}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 169502400

約数和(自身を除く): 104045960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1489, 1570, 2198, 2978, 3140, 4396, 5495, 5956, 6280, 7445, 8792, 10423, 10990, 11912, 14890, 20846, 21980, 29780, 41692, 43960, 52115, 59560, 83384, 104230, 208460, 233773, 416920, 467546, 935092, 1168865, 1636411, 1870184, 2337730, 3272822, 4675460, 6545644, 8182055, 9350920, 13091288, 16364110, 32728220, 65456440]

約数ペア:

[(1, 65456440), (2, 32728220), (4, 16364110), (5, 13091288), (7, 9350920), (8, 8182055), (10, 6545644), (14, 4675460), (20, 3272822), (28, 2337730), (35, 1870184), (40, 1636411), (56, 1168865), (70, 935092), (140, 467546), (157, 416920), (280, 233773), (314, 208460), (628, 104230), (785, 83384), (1099, 59560), (1256, 52115), (1489, 43960), (1570, 41692), (2198, 29780), (2978, 21980), (3140, 20846), (4396, 14890), (5495, 11912), (5956, 10990), (6280, 10423), (7445, 8792)]