20176697645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:1014

約数の個数: 64

約数和(自身を含む): 27845959680

約数和(自身を除く): 7669262035

約数列:

[1, 5, 13, 19, 65, 95, 127, 197, 247, 635, 653, 985, 1235, 1651, 2413, 2561, 3265, 3743, 8255, 8489, 12065, 12407, 12805, 18715, 25019, 31369, 42445, 48659, 62035, 82931, 125095, 128641, 156845, 161291, 243295, 325247, 414655, 475361, 643205, 806455, 1078103, 1575689, 1626235, 1672333, 2376805, 2444179, 5390515, 6179693, 7878445, 8361665, 12220895, 16337407, 20483957, 30898465, 31774327, 81687035, 102419785, 158871635, 212386291, 310410733, 1061931455, 1552053665, 4035339529, 20176697645]

約数ペア:

[(1, 20176697645), (5, 4035339529), (13, 1552053665), (19, 1061931455), (65, 310410733), (95, 212386291), (127, 158871635), (197, 102419785), (247, 81687035), (635, 31774327), (653, 30898465), (985, 20483957), (1235, 16337407), (1651, 12220895), (2413, 8361665), (2561, 7878445), (3265, 6179693), (3743, 5390515), (8255, 2444179), (8489, 2376805), (12065, 1672333), (12407, 1626235), (12805, 1575689), (18715, 1078103), (25019, 806455), (31369, 643205), (42445, 475361), (48659, 414655), (62035, 325247), (82931, 243295), (125095, 161291), (128641, 156845)]