28330900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 73884160

約数和(自身を除く): 45553260

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 31, 37, 38, 50, 52, 62, 65, 74, 76, 95, 100, 124, 130, 148, 155, 185, 190, 247, 260, 310, 325, 370, 380, 403, 475, 481, 494, 589, 620, 650, 703, 740, 775, 806, 925, 950, 962, 988, 1147, 1178, 1235, 1300, 1406, 1550, 1612, 1850, 1900, 1924, 2015, 2294, 2356, 2405, 2470, 2812, 2945, 3100, 3515, 3700, 4030, 4588, 4810, 4940, 5735, 5890, 6175, 7030, 7657, 8060, 9139, 9620, 10075, 11470, 11780, 12025, 12350, 14060, 14725, 14911, 15314, 17575, 18278, 20150, 21793, 22940, 24050, 24700, 28675, 29450, 29822, 30628, 35150, 36556, 38285, 40300, 43586, 45695, 48100, 57350, 58900, 59644, 70300, 74555, 76570, 87172, 91390, 108965, 114700, 149110, 153140, 182780, 191425, 217930, 228475, 283309, 298220, 372775, 382850, 435860, 456950, 544825, 566618, 745550, 765700, 913900, 1089650, 1133236, 1416545, 1491100, 2179300, 2833090, 5666180, 7082725, 14165450, 28330900]

約数ペア:

[(1, 28330900), (2, 14165450), (4, 7082725), (5, 5666180), (10, 2833090), (13, 2179300), (19, 1491100), (20, 1416545), (25, 1133236), (26, 1089650), (31, 913900), (37, 765700), (38, 745550), (50, 566618), (52, 544825), (62, 456950), (65, 435860), (74, 382850), (76, 372775), (95, 298220), (100, 283309), (124, 228475), (130, 217930), (148, 191425), (155, 182780), (185, 153140), (190, 149110), (247, 114700), (260, 108965), (310, 91390), (325, 87172), (370, 76570), (380, 74555), (403, 70300), (475, 59644), (481, 58900), (494, 57350), (589, 48100), (620, 45695), (650, 43586), (703, 40300), (740, 38285), (775, 36556), (806, 35150), (925, 30628), (950, 29822), (962, 29450), (988, 28675), (1147, 24700), (1178, 24050), (1235, 22940), (1300, 21793), (1406, 20150), (1550, 18278), (1612, 17575), (1850, 15314), (1900, 14911), (1924, 14725), (2015, 14060), (2294, 12350), (2356, 12025), (2405, 11780), (2470, 11470), (2812, 10075), (2945, 9620), (3100, 9139), (3515, 8060), (3700, 7657), (4030, 7030), (4588, 6175), (4810, 5890), (4940, 5735)]