63441220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 136710000

約数和(自身を除く): 73268780

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 149, 244, 298, 305, 349, 596, 610, 698, 745, 1220, 1396, 1490, 1745, 2980, 3490, 6980, 9089, 18178, 21289, 36356, 42578, 45445, 52001, 85156, 90890, 104002, 106445, 181780, 208004, 212890, 260005, 425780, 520010, 1040020, 3172061, 6344122, 12688244, 15860305, 31720610, 63441220]

約数ペア:

[(1, 63441220), (2, 31720610), (4, 15860305), (5, 12688244), (10, 6344122), (20, 3172061), (61, 1040020), (122, 520010), (149, 425780), (244, 260005), (298, 212890), (305, 208004), (349, 181780), (596, 106445), (610, 104002), (698, 90890), (745, 85156), (1220, 52001), (1396, 45445), (1490, 42578), (1745, 36356), (2980, 21289), (3490, 18178), (6980, 9089)]