20921837270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{41257}}^1$

素因数の和:41457

約数の個数: 64

約数和(自身を含む): 42241590720

約数和(自身を除く): 21319753450

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 157, 170, 190, 314, 323, 646, 785, 1570, 1615, 2669, 2983, 3230, 5338, 5966, 13345, 14915, 26690, 29830, 41257, 50711, 82514, 101422, 206285, 253555, 412570, 507110, 701369, 783883, 1402738, 1567766, 3506845, 3919415, 6477349, 7013690, 7838830, 12954698, 13326011, 26652022, 32386745, 64773490, 66630055, 110114933, 123069631, 133260110, 220229866, 246139262, 550574665, 615348155, 1101149330, 1230696310, 2092183727, 4184367454, 10460918635, 20921837270]

約数ペア:

[(1, 20921837270), (2, 10460918635), (5, 4184367454), (10, 2092183727), (17, 1230696310), (19, 1101149330), (34, 615348155), (38, 550574665), (85, 246139262), (95, 220229866), (157, 133260110), (170, 123069631), (190, 110114933), (314, 66630055), (323, 64773490), (646, 32386745), (785, 26652022), (1570, 13326011), (1615, 12954698), (2669, 7838830), (2983, 7013690), (3230, 6477349), (5338, 3919415), (5966, 3506845), (13345, 1567766), (14915, 1402738), (26690, 783883), (29830, 701369), (41257, 507110), (50711, 412570), (82514, 253555), (101422, 206285)]