51662120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 122135040

約数和(自身を除く): 70472920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 683, 1220, 1240, 1366, 1891, 2440, 2732, 3415, 3782, 5464, 6830, 7564, 9455, 13660, 15128, 18910, 21173, 27320, 37820, 41663, 42346, 75640, 83326, 84692, 105865, 166652, 169384, 208315, 211730, 333304, 416630, 423460, 833260, 846920, 1291553, 1666520, 2583106, 5166212, 6457765, 10332424, 12915530, 25831060, 51662120]

約数ペア:

[(1, 51662120), (2, 25831060), (4, 12915530), (5, 10332424), (8, 6457765), (10, 5166212), (20, 2583106), (31, 1666520), (40, 1291553), (61, 846920), (62, 833260), (122, 423460), (124, 416630), (155, 333304), (244, 211730), (248, 208315), (305, 169384), (310, 166652), (488, 105865), (610, 84692), (620, 83326), (683, 75640), (1220, 42346), (1240, 41663), (1366, 37820), (1891, 27320), (2440, 21173), (2732, 18910), (3415, 15128), (3782, 13660), (5464, 9455), (6830, 7564)]