20552640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:370

約数の個数: 112

約数和(自身を含む): 66324480

約数和(自身を除く): 45771840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 79, 80, 96, 120, 158, 160, 192, 237, 240, 271, 316, 320, 395, 474, 480, 542, 632, 790, 813, 948, 960, 1084, 1185, 1264, 1355, 1580, 1626, 1896, 2168, 2370, 2528, 2710, 3160, 3252, 3792, 4065, 4336, 4740, 5056, 5420, 6320, 6504, 7584, 8130, 8672, 9480, 10840, 12640, 13008, 15168, 16260, 17344, 18960, 21409, 21680, 25280, 26016, 32520, 37920, 42818, 43360, 52032, 64227, 65040, 75840, 85636, 86720, 107045, 128454, 130080, 171272, 214090, 256908, 260160, 321135, 342544, 428180, 513816, 642270, 685088, 856360, 1027632, 1284540, 1370176, 1712720, 2055264, 2569080, 3425440, 4110528, 5138160, 6850880, 10276320, 20552640]

約数ペア:

[(1, 20552640), (2, 10276320), (3, 6850880), (4, 5138160), (5, 4110528), (6, 3425440), (8, 2569080), (10, 2055264), (12, 1712720), (15, 1370176), (16, 1284540), (20, 1027632), (24, 856360), (30, 685088), (32, 642270), (40, 513816), (48, 428180), (60, 342544), (64, 321135), (79, 260160), (80, 256908), (96, 214090), (120, 171272), (158, 130080), (160, 128454), (192, 107045), (237, 86720), (240, 85636), (271, 75840), (316, 65040), (320, 64227), (395, 52032), (474, 43360), (480, 42818), (542, 37920), (632, 32520), (790, 26016), (813, 25280), (948, 21680), (960, 21409), (1084, 18960), (1185, 17344), (1264, 16260), (1355, 15168), (1580, 13008), (1626, 12640), (1896, 10840), (2168, 9480), (2370, 8672), (2528, 8130), (2710, 7584), (3160, 6504), (3252, 6320), (3792, 5420), (4065, 5056), (4336, 4740)]