21919360

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1181}}^1$

素因数の和:1229

約数の個数: 64

約数和(自身を含む): 54253800

約数和(自身を除く): 32334440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1181, 1856, 2320, 2362, 3712, 4640, 4724, 5905, 9280, 9448, 11810, 18560, 18896, 23620, 34249, 37792, 47240, 68498, 75584, 94480, 136996, 151168, 171245, 188960, 273992, 342490, 377920, 547984, 684980, 755840, 1095968, 1369960, 2191936, 2739920, 4383872, 5479840, 10959680, 21919360]

約数ペア:

[(1, 21919360), (2, 10959680), (4, 5479840), (5, 4383872), (8, 2739920), (10, 2191936), (16, 1369960), (20, 1095968), (29, 755840), (32, 684980), (40, 547984), (58, 377920), (64, 342490), (80, 273992), (116, 188960), (128, 171245), (145, 151168), (160, 136996), (232, 94480), (290, 75584), (320, 68498), (464, 47240), (580, 37792), (640, 34249), (928, 23620), (1160, 18896), (1181, 18560), (1856, 11810), (2320, 9448), (2362, 9280), (3712, 5905), (4640, 4724)]