18773900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 44111760

約数和(自身を除く): 25337860

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 164, 190, 205, 241, 380, 410, 475, 482, 779, 820, 950, 964, 1025, 1205, 1558, 1900, 2050, 2410, 3116, 3895, 4100, 4579, 4820, 6025, 7790, 9158, 9881, 12050, 15580, 18316, 19475, 19762, 22895, 24100, 38950, 39524, 45790, 49405, 77900, 91580, 98810, 114475, 187739, 197620, 228950, 247025, 375478, 457900, 494050, 750956, 938695, 988100, 1877390, 3754780, 4693475, 9386950, 18773900]

約数ペア:

[(1, 18773900), (2, 9386950), (4, 4693475), (5, 3754780), (10, 1877390), (19, 988100), (20, 938695), (25, 750956), (38, 494050), (41, 457900), (50, 375478), (76, 247025), (82, 228950), (95, 197620), (100, 187739), (164, 114475), (190, 98810), (205, 91580), (241, 77900), (380, 49405), (410, 45790), (475, 39524), (482, 38950), (779, 24100), (820, 22895), (950, 19762), (964, 19475), (1025, 18316), (1205, 15580), (1558, 12050), (1900, 9881), (2050, 9158), (2410, 7790), (3116, 6025), (3895, 4820), (4100, 4579)]