278052640

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1026

約数の個数: 96

約数和(自身を含む): 689955840

約数和(自身を除く): 411903200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 80, 122, 124, 155, 160, 244, 248, 305, 310, 488, 496, 610, 620, 919, 976, 992, 1220, 1240, 1838, 1891, 1952, 2440, 2480, 3676, 3782, 4595, 4880, 4960, 7352, 7564, 9190, 9455, 9760, 14704, 15128, 18380, 18910, 28489, 29408, 30256, 36760, 37820, 56059, 56978, 60512, 73520, 75640, 112118, 113956, 142445, 147040, 151280, 224236, 227912, 280295, 284890, 302560, 448472, 455824, 560590, 569780, 896944, 911648, 1121180, 1139560, 1737829, 1793888, 2242360, 2279120, 3475658, 4484720, 4558240, 6951316, 8689145, 8969440, 13902632, 17378290, 27805264, 34756580, 55610528, 69513160, 139026320, 278052640]

約数ペア:

[(1, 278052640), (2, 139026320), (4, 69513160), (5, 55610528), (8, 34756580), (10, 27805264), (16, 17378290), (20, 13902632), (31, 8969440), (32, 8689145), (40, 6951316), (61, 4558240), (62, 4484720), (80, 3475658), (122, 2279120), (124, 2242360), (155, 1793888), (160, 1737829), (244, 1139560), (248, 1121180), (305, 911648), (310, 896944), (488, 569780), (496, 560590), (610, 455824), (620, 448472), (919, 302560), (976, 284890), (992, 280295), (1220, 227912), (1240, 224236), (1838, 151280), (1891, 147040), (1952, 142445), (2440, 113956), (2480, 112118), (3676, 75640), (3782, 73520), (4595, 60512), (4880, 56978), (4960, 56059), (7352, 37820), (7564, 36760), (9190, 30256), (9455, 29408), (9760, 28489), (14704, 18910), (15128, 18380)]