169401980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:531

約数の個数: 96

約数和(自身を含む): 408360960

約数和(自身を除く): 238958980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 59, 62, 110, 118, 124, 155, 220, 236, 295, 310, 341, 421, 590, 620, 649, 682, 842, 1180, 1298, 1364, 1684, 1705, 1829, 2105, 2596, 3245, 3410, 3658, 4210, 4631, 6490, 6820, 7316, 8420, 9145, 9262, 12980, 13051, 18290, 18524, 20119, 23155, 24839, 26102, 36580, 40238, 46310, 49678, 52204, 65255, 80476, 92620, 99356, 100595, 124195, 130510, 143561, 201190, 248390, 261020, 273229, 287122, 402380, 496780, 546458, 574244, 717805, 770009, 1092916, 1366145, 1435610, 1540018, 2732290, 2871220, 3080036, 3850045, 5464580, 7700090, 8470099, 15400180, 16940198, 33880396, 42350495, 84700990, 169401980]

約数ペア:

[(1, 169401980), (2, 84700990), (4, 42350495), (5, 33880396), (10, 16940198), (11, 15400180), (20, 8470099), (22, 7700090), (31, 5464580), (44, 3850045), (55, 3080036), (59, 2871220), (62, 2732290), (110, 1540018), (118, 1435610), (124, 1366145), (155, 1092916), (220, 770009), (236, 717805), (295, 574244), (310, 546458), (341, 496780), (421, 402380), (590, 287122), (620, 273229), (649, 261020), (682, 248390), (842, 201190), (1180, 143561), (1298, 130510), (1364, 124195), (1684, 100595), (1705, 99356), (1829, 92620), (2105, 80476), (2596, 65255), (3245, 52204), (3410, 49678), (3658, 46310), (4210, 40238), (4631, 36580), (6490, 26102), (6820, 24839), (7316, 23155), (8420, 20119), (9145, 18524), (9262, 18290), (12980, 13051)]