55052500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 90

約数和(自身を含む): 129141474

約数和(自身を除く): 74088974

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 125, 190, 244, 250, 305, 361, 380, 475, 500, 610, 625, 722, 950, 1159, 1220, 1250, 1444, 1525, 1805, 1900, 2318, 2375, 2500, 3050, 3610, 4636, 4750, 5795, 6100, 7220, 7625, 9025, 9500, 11590, 11875, 15250, 18050, 22021, 23180, 23750, 28975, 30500, 36100, 38125, 44042, 45125, 47500, 57950, 76250, 88084, 90250, 110105, 115900, 144875, 152500, 180500, 220210, 225625, 289750, 440420, 451250, 550525, 579500, 724375, 902500, 1101050, 1448750, 2202100, 2752625, 2897500, 5505250, 11010500, 13763125, 27526250, 55052500]

約数ペア:

[(1, 55052500), (2, 27526250), (4, 13763125), (5, 11010500), (10, 5505250), (19, 2897500), (20, 2752625), (25, 2202100), (38, 1448750), (50, 1101050), (61, 902500), (76, 724375), (95, 579500), (100, 550525), (122, 451250), (125, 440420), (190, 289750), (244, 225625), (250, 220210), (305, 180500), (361, 152500), (380, 144875), (475, 115900), (500, 110105), (610, 90250), (625, 88084), (722, 76250), (950, 57950), (1159, 47500), (1220, 45125), (1250, 44042), (1444, 38125), (1525, 36100), (1805, 30500), (1900, 28975), (2318, 23750), (2375, 23180), (2500, 22021), (3050, 18050), (3610, 15250), (4636, 11875), (4750, 11590), (5795, 9500), (6100, 9025), (7220, 7625)]