2157156790

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 4037672448

約数和(自身を除く): 1880515658

約数列:

[1, 2, 5, 10, 67, 71, 134, 137, 142, 274, 331, 335, 355, 662, 670, 685, 710, 1370, 1655, 3310, 4757, 9179, 9514, 9727, 18358, 19454, 22177, 23501, 23785, 44354, 45347, 45895, 47002, 47570, 48635, 90694, 91790, 97270, 110885, 117505, 221770, 226735, 235010, 453470, 651709, 1303418, 1574567, 3038249, 3149134, 3219637, 3258545, 6076498, 6439274, 6517090, 7872835, 15191245, 15745670, 16098185, 30382490, 32196370, 215715679, 431431358, 1078578395, 2157156790]

約数ペア:

[(1, 2157156790), (2, 1078578395), (5, 431431358), (10, 215715679), (67, 32196370), (71, 30382490), (134, 16098185), (137, 15745670), (142, 15191245), (274, 7872835), (331, 6517090), (335, 6439274), (355, 6076498), (662, 3258545), (670, 3219637), (685, 3149134), (710, 3038249), (1370, 1574567), (1655, 1303418), (3310, 651709), (4757, 453470), (9179, 235010), (9514, 226735), (9727, 221770), (18358, 117505), (19454, 110885), (22177, 97270), (23501, 91790), (23785, 90694), (44354, 48635), (45347, 47570), (45895, 47002)]