639730052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{1571}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 1242307584

約数和(自身を除く): 602577532

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 191, 382, 533, 764, 1066, 1571, 2132, 2483, 3142, 4966, 6284, 7831, 9932, 15662, 20423, 31324, 40846, 64411, 81692, 101803, 128822, 203606, 257644, 300061, 407212, 600122, 837343, 1200244, 1674686, 3349372, 3900793, 7801586, 12302501, 15603172, 24605002, 49210004, 159932513, 319865026, 639730052]

約数ペア:

[(1, 639730052), (2, 319865026), (4, 159932513), (13, 49210004), (26, 24605002), (41, 15603172), (52, 12302501), (82, 7801586), (164, 3900793), (191, 3349372), (382, 1674686), (533, 1200244), (764, 837343), (1066, 600122), (1571, 407212), (2132, 300061), (2483, 257644), (3142, 203606), (4966, 128822), (6284, 101803), (7831, 81692), (9932, 64411), (15662, 40846), (20423, 31324)]