890393900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:360

約数の個数: 144

約数和(自身を含む): 2194359552

約数和(自身を除く): 1303965652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 110, 131, 148, 167, 185, 220, 262, 275, 334, 370, 407, 524, 550, 655, 668, 740, 814, 835, 925, 1100, 1310, 1441, 1628, 1670, 1837, 1850, 2035, 2620, 2882, 3275, 3340, 3674, 3700, 4070, 4175, 4847, 5764, 6179, 6550, 7205, 7348, 8140, 8350, 9185, 9694, 10175, 12358, 13100, 14410, 16700, 18370, 19388, 20350, 21877, 24235, 24716, 28820, 30895, 36025, 36740, 40700, 43754, 45925, 48470, 53317, 61790, 67969, 72050, 87508, 91850, 96940, 106634, 109385, 121175, 123580, 135938, 144100, 154475, 183700, 213268, 218770, 240647, 242350, 266585, 271876, 308950, 339845, 437540, 481294, 484700, 533170, 546925, 617900, 679690, 809449, 962588, 1066340, 1093850, 1203235, 1332925, 1359380, 1618898, 1699225, 2187700, 2406470, 2665850, 3237796, 3398450, 4047245, 4812940, 5331700, 6016175, 6796900, 8094490, 8903939, 12032350, 16188980, 17807878, 20236225, 24064700, 35615756, 40472450, 44519695, 80944900, 89039390, 178078780, 222598475, 445196950, 890393900]

約数ペア:

[(1, 890393900), (2, 445196950), (4, 222598475), (5, 178078780), (10, 89039390), (11, 80944900), (20, 44519695), (22, 40472450), (25, 35615756), (37, 24064700), (44, 20236225), (50, 17807878), (55, 16188980), (74, 12032350), (100, 8903939), (110, 8094490), (131, 6796900), (148, 6016175), (167, 5331700), (185, 4812940), (220, 4047245), (262, 3398450), (275, 3237796), (334, 2665850), (370, 2406470), (407, 2187700), (524, 1699225), (550, 1618898), (655, 1359380), (668, 1332925), (740, 1203235), (814, 1093850), (835, 1066340), (925, 962588), (1100, 809449), (1310, 679690), (1441, 617900), (1628, 546925), (1670, 533170), (1837, 484700), (1850, 481294), (2035, 437540), (2620, 339845), (2882, 308950), (3275, 271876), (3340, 266585), (3674, 242350), (3700, 240647), (4070, 218770), (4175, 213268), (4847, 183700), (5764, 154475), (6179, 144100), (6550, 135938), (7205, 123580), (7348, 121175), (8140, 109385), (8350, 106634), (9185, 96940), (9694, 91850), (10175, 87508), (12358, 72050), (13100, 67969), (14410, 61790), (16700, 53317), (18370, 48470), (19388, 45925), (20350, 43754), (21877, 40700), (24235, 36740), (24716, 36025), (28820, 30895)]