31230100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 108

約数和(自身を含む): 77924700

約数和(自身を除く): 46694600

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 89, 100, 110, 116, 121, 145, 178, 220, 242, 275, 290, 319, 356, 445, 484, 550, 580, 605, 638, 725, 890, 979, 1100, 1210, 1276, 1450, 1595, 1780, 1958, 2225, 2420, 2581, 2900, 3025, 3190, 3509, 3916, 4450, 4895, 5162, 6050, 6380, 7018, 7975, 8900, 9790, 10324, 10769, 12100, 12905, 14036, 15950, 17545, 19580, 21538, 24475, 25810, 28391, 31900, 35090, 43076, 48950, 51620, 53845, 56782, 64525, 70180, 87725, 97900, 107690, 113564, 129050, 141955, 175450, 215380, 258100, 269225, 283910, 312301, 350900, 538450, 567820, 624602, 709775, 1076900, 1249204, 1419550, 1561505, 2839100, 3123010, 6246020, 7807525, 15615050, 31230100]

約数ペア:

[(1, 31230100), (2, 15615050), (4, 7807525), (5, 6246020), (10, 3123010), (11, 2839100), (20, 1561505), (22, 1419550), (25, 1249204), (29, 1076900), (44, 709775), (50, 624602), (55, 567820), (58, 538450), (89, 350900), (100, 312301), (110, 283910), (116, 269225), (121, 258100), (145, 215380), (178, 175450), (220, 141955), (242, 129050), (275, 113564), (290, 107690), (319, 97900), (356, 87725), (445, 70180), (484, 64525), (550, 56782), (580, 53845), (605, 51620), (638, 48950), (725, 43076), (890, 35090), (979, 31900), (1100, 28391), (1210, 25810), (1276, 24475), (1450, 21538), (1595, 19580), (1780, 17545), (1958, 15950), (2225, 14036), (2420, 12905), (2581, 12100), (2900, 10769), (3025, 10324), (3190, 9790), (3509, 8900), (3916, 7975), (4450, 7018), (4895, 6380), (5162, 6050)]