257895720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1471}}^1$

素因数の和:1975

約数の個数: 96

約数和(自身を含む): 840453120

約数和(自身を除く): 582557400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 487, 974, 1461, 1471, 1948, 2435, 2922, 2942, 3896, 4383, 4413, 4870, 5844, 5884, 7305, 7355, 8766, 8826, 9740, 11688, 11768, 13239, 14610, 14710, 17532, 17652, 19480, 21915, 22065, 26478, 29220, 29420, 35064, 35304, 43830, 44130, 52956, 58440, 58840, 66195, 87660, 88260, 105912, 132390, 175320, 176520, 264780, 529560, 716377, 1432754, 2149131, 2865508, 3581885, 4298262, 5731016, 6447393, 7163770, 8596524, 10745655, 12894786, 14327540, 17193048, 21491310, 25789572, 28655080, 32236965, 42982620, 51579144, 64473930, 85965240, 128947860, 257895720]

約数ペア:

[(1, 257895720), (2, 128947860), (3, 85965240), (4, 64473930), (5, 51579144), (6, 42982620), (8, 32236965), (9, 28655080), (10, 25789572), (12, 21491310), (15, 17193048), (18, 14327540), (20, 12894786), (24, 10745655), (30, 8596524), (36, 7163770), (40, 6447393), (45, 5731016), (60, 4298262), (72, 3581885), (90, 2865508), (120, 2149131), (180, 1432754), (360, 716377), (487, 529560), (974, 264780), (1461, 176520), (1471, 175320), (1948, 132390), (2435, 105912), (2922, 88260), (2942, 87660), (3896, 66195), (4383, 58840), (4413, 58440), (4870, 52956), (5844, 44130), (5884, 43830), (7305, 35304), (7355, 35064), (8766, 29420), (8826, 29220), (9740, 26478), (11688, 22065), (11768, 21915), (13239, 19480), (14610, 17652), (14710, 17532)]