2557587500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{15739}}^1$

素因数の和:15781

約数の個数: 72

約数和(自身を含む): 6025083120

約数和(自身を除く): 3467495620

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1250, 1300, 1625, 2500, 3125, 3250, 6250, 6500, 8125, 12500, 15739, 16250, 31478, 32500, 40625, 62956, 78695, 81250, 157390, 162500, 204607, 314780, 393475, 409214, 786950, 818428, 1023035, 1573900, 1967375, 2046070, 3934750, 4092140, 5115175, 7869500, 9836875, 10230350, 19673750, 20460700, 25575875, 39347500, 49184375, 51151750, 98368750, 102303500, 127879375, 196737500, 255758750, 511517500, 639396875, 1278793750, 2557587500]

約数ペア:

[(1, 2557587500), (2, 1278793750), (4, 639396875), (5, 511517500), (10, 255758750), (13, 196737500), (20, 127879375), (25, 102303500), (26, 98368750), (50, 51151750), (52, 49184375), (65, 39347500), (100, 25575875), (125, 20460700), (130, 19673750), (250, 10230350), (260, 9836875), (325, 7869500), (500, 5115175), (625, 4092140), (650, 3934750), (1250, 2046070), (1300, 1967375), (1625, 1573900), (2500, 1023035), (3125, 818428), (3250, 786950), (6250, 409214), (6500, 393475), (8125, 314780), (12500, 204607), (15739, 162500), (16250, 157390), (31478, 81250), (32500, 78695), (40625, 62956)]