650260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 48

約数和(自身を含む): 1531152

約数和(自身を除く): 880892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 61, 65, 82, 122, 130, 164, 205, 244, 260, 305, 410, 533, 610, 793, 820, 1066, 1220, 1586, 2132, 2501, 2665, 3172, 3965, 5002, 5330, 7930, 10004, 10660, 12505, 15860, 25010, 32513, 50020, 65026, 130052, 162565, 325130, 650260]

約数ペア:

[(1, 650260), (2, 325130), (4, 162565), (5, 130052), (10, 65026), (13, 50020), (20, 32513), (26, 25010), (41, 15860), (52, 12505), (61, 10660), (65, 10004), (82, 7930), (122, 5330), (130, 5002), (164, 3965), (205, 3172), (244, 2665), (260, 2501), (305, 2132), (410, 1586), (533, 1220), (610, 1066), (793, 820)]