490236500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:610

約数の個数: 96

約数和(自身を含む): 1161888000

約数和(自身を除く): 671651500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 199, 250, 260, 325, 379, 398, 500, 650, 758, 796, 995, 1300, 1516, 1625, 1895, 1990, 2587, 3250, 3790, 3980, 4927, 4975, 5174, 6500, 7580, 9475, 9854, 9950, 10348, 12935, 18950, 19708, 19900, 24635, 24875, 25870, 37900, 47375, 49270, 49750, 51740, 64675, 75421, 94750, 98540, 99500, 123175, 129350, 150842, 189500, 246350, 258700, 301684, 323375, 377105, 492700, 615875, 646750, 754210, 980473, 1231750, 1293500, 1508420, 1885525, 1960946, 2463500, 3771050, 3921892, 4902365, 7542100, 9427625, 9804730, 18855250, 19609460, 24511825, 37710500, 49023650, 98047300, 122559125, 245118250, 490236500]

約数ペア:

[(1, 490236500), (2, 245118250), (4, 122559125), (5, 98047300), (10, 49023650), (13, 37710500), (20, 24511825), (25, 19609460), (26, 18855250), (50, 9804730), (52, 9427625), (65, 7542100), (100, 4902365), (125, 3921892), (130, 3771050), (199, 2463500), (250, 1960946), (260, 1885525), (325, 1508420), (379, 1293500), (398, 1231750), (500, 980473), (650, 754210), (758, 646750), (796, 615875), (995, 492700), (1300, 377105), (1516, 323375), (1625, 301684), (1895, 258700), (1990, 246350), (2587, 189500), (3250, 150842), (3790, 129350), (3980, 123175), (4927, 99500), (4975, 98540), (5174, 94750), (6500, 75421), (7580, 64675), (9475, 51740), (9854, 49750), (9950, 49270), (10348, 47375), (12935, 37900), (18950, 25870), (19708, 24875), (19900, 24635)]