28549760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1439}}^1$

素因数の和:1489

約数の個数: 64

約数和(自身を含む): 70502400

約数和(自身を除く): 41952640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1439, 1984, 2480, 2878, 3968, 4960, 5756, 7195, 9920, 11512, 14390, 19840, 23024, 28780, 44609, 46048, 57560, 89218, 92096, 115120, 178436, 184192, 223045, 230240, 356872, 446090, 460480, 713744, 892180, 920960, 1427488, 1784360, 2854976, 3568720, 5709952, 7137440, 14274880, 28549760]

約数ペア:

[(1, 28549760), (2, 14274880), (4, 7137440), (5, 5709952), (8, 3568720), (10, 2854976), (16, 1784360), (20, 1427488), (31, 920960), (32, 892180), (40, 713744), (62, 460480), (64, 446090), (80, 356872), (124, 230240), (128, 223045), (155, 184192), (160, 178436), (248, 115120), (310, 92096), (320, 89218), (496, 57560), (620, 46048), (640, 44609), (992, 28780), (1240, 23024), (1439, 19840), (1984, 14390), (2480, 11512), (2878, 9920), (3968, 7195), (4960, 5756)]