257555970

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{136273}}^1$

素因数の和:136296

約数の個数: 64

約数和(自身を含む): 784938240

約数和(自身を除く): 527382270

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 136273, 272546, 408819, 681365, 817638, 953911, 1226457, 1362730, 1907822, 2044095, 2452914, 2861733, 3679371, 4088190, 4769555, 5723466, 6132285, 7358742, 8585199, 9539110, 12264570, 14308665, 17170398, 18396855, 25755597, 28617330, 36793710, 42925995, 51511194, 85851990, 128777985, 257555970]

約数ペア:

[(1, 257555970), (2, 128777985), (3, 85851990), (5, 51511194), (6, 42925995), (7, 36793710), (9, 28617330), (10, 25755597), (14, 18396855), (15, 17170398), (18, 14308665), (21, 12264570), (27, 9539110), (30, 8585199), (35, 7358742), (42, 6132285), (45, 5723466), (54, 4769555), (63, 4088190), (70, 3679371), (90, 2861733), (105, 2452914), (126, 2044095), (135, 1907822), (189, 1362730), (210, 1226457), (270, 953911), (315, 817638), (378, 681365), (630, 408819), (945, 272546), (1890, 136273)]