20843160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48829800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 431, 465, 520, 620, 744, 780, 806, 862, 930, 1209, 1240, 1293, 1560, 1612, 1724, 1860, 2015, 2155, 2418, 2586, 3224, 3448, 3720, 4030, 4310, 4836, 5172, 5603, 6045, 6465, 8060, 8620, 9672, 10344, 11206, 12090, 12930, 13361, 16120, 16809, 17240, 22412, 24180, 25860, 26722, 28015, 33618, 40083, 44824, 48360, 51720, 53444, 56030, 66805, 67236, 80166, 84045, 106888, 112060, 133610, 134472, 160332, 168090, 173693, 200415, 224120, 267220, 320664, 336180, 347386, 400830, 521079, 534440, 672360, 694772, 801660, 868465, 1042158, 1389544, 1603320, 1736930, 2084316, 2605395, 3473860, 4168632, 5210790, 6947720, 10421580, 20843160]

約数ペア:

[(1, 20843160), (2, 10421580), (3, 6947720), (4, 5210790), (5, 4168632), (6, 3473860), (8, 2605395), (10, 2084316), (12, 1736930), (13, 1603320), (15, 1389544), (20, 1042158), (24, 868465), (26, 801660), (30, 694772), (31, 672360), (39, 534440), (40, 521079), (52, 400830), (60, 347386), (62, 336180), (65, 320664), (78, 267220), (93, 224120), (104, 200415), (120, 173693), (124, 168090), (130, 160332), (155, 134472), (156, 133610), (186, 112060), (195, 106888), (248, 84045), (260, 80166), (310, 67236), (312, 66805), (372, 56030), (390, 53444), (403, 51720), (431, 48360), (465, 44824), (520, 40083), (620, 33618), (744, 28015), (780, 26722), (806, 25860), (862, 24180), (930, 22412), (1209, 17240), (1240, 16809), (1293, 16120), (1560, 13361), (1612, 12930), (1724, 12090), (1860, 11206), (2015, 10344), (2155, 9672), (2418, 8620), (2586, 8060), (3224, 6465), (3448, 6045), (3720, 5603), (4030, 5172), (4310, 4836)]