913900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 2308880

約数和(自身を除く): 1394980

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 37, 38, 50, 52, 65, 74, 76, 95, 100, 130, 148, 185, 190, 247, 260, 325, 370, 380, 475, 481, 494, 650, 703, 740, 925, 950, 962, 988, 1235, 1300, 1406, 1850, 1900, 1924, 2405, 2470, 2812, 3515, 3700, 4810, 4940, 6175, 7030, 9139, 9620, 12025, 12350, 14060, 17575, 18278, 24050, 24700, 35150, 36556, 45695, 48100, 70300, 91390, 182780, 228475, 456950, 913900]

約数ペア:

[(1, 913900), (2, 456950), (4, 228475), (5, 182780), (10, 91390), (13, 70300), (19, 48100), (20, 45695), (25, 36556), (26, 35150), (37, 24700), (38, 24050), (50, 18278), (52, 17575), (65, 14060), (74, 12350), (76, 12025), (95, 9620), (100, 9139), (130, 7030), (148, 6175), (185, 4940), (190, 4810), (247, 3700), (260, 3515), (325, 2812), (370, 2470), (380, 2405), (475, 1924), (481, 1900), (494, 1850), (650, 1406), (703, 1300), (740, 1235), (925, 988), (950, 962)]