20199453848

素因数分解:

$2^3\times 7^3\times {\mathrm{379}}^1\times {\mathrm{19423}}^1$

素因数の和:19829

約数の個数: 64

約数和(自身を含む): 44286720000

約数和(自身を除く): 24087266152

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 379, 392, 686, 758, 1372, 1516, 2653, 2744, 3032, 5306, 10612, 18571, 19423, 21224, 37142, 38846, 74284, 77692, 129997, 135961, 148568, 155384, 259994, 271922, 519988, 543844, 951727, 1039976, 1087688, 1903454, 3806908, 6662089, 7361317, 7613816, 13324178, 14722634, 26648356, 29445268, 51529219, 53296712, 58890536, 103058438, 206116876, 360704533, 412233752, 721409066, 1442818132, 2524931731, 2885636264, 5049863462, 10099726924, 20199453848]

約数ペア:

[(1, 20199453848), (2, 10099726924), (4, 5049863462), (7, 2885636264), (8, 2524931731), (14, 1442818132), (28, 721409066), (49, 412233752), (56, 360704533), (98, 206116876), (196, 103058438), (343, 58890536), (379, 53296712), (392, 51529219), (686, 29445268), (758, 26648356), (1372, 14722634), (1516, 13324178), (2653, 7613816), (2744, 7361317), (3032, 6662089), (5306, 3806908), (10612, 1903454), (18571, 1087688), (19423, 1039976), (21224, 951727), (37142, 543844), (38846, 519988), (74284, 271922), (77692, 259994), (129997, 155384), (135961, 148568)]