19403750

素因数分解:

$2^1\times 5^4\times {\mathrm{19}}^2\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 60

約数和(自身を含む): 39278052

約数和(自身を除く): 19874302

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 125, 190, 215, 250, 361, 430, 475, 625, 722, 817, 950, 1075, 1250, 1634, 1805, 2150, 2375, 3610, 4085, 4750, 5375, 8170, 9025, 10750, 11875, 15523, 18050, 20425, 23750, 26875, 31046, 40850, 45125, 53750, 77615, 90250, 102125, 155230, 204250, 225625, 388075, 451250, 510625, 776150, 1021250, 1940375, 3880750, 9701875, 19403750]

約数ペア:

[(1, 19403750), (2, 9701875), (5, 3880750), (10, 1940375), (19, 1021250), (25, 776150), (38, 510625), (43, 451250), (50, 388075), (86, 225625), (95, 204250), (125, 155230), (190, 102125), (215, 90250), (250, 77615), (361, 53750), (430, 45125), (475, 40850), (625, 31046), (722, 26875), (817, 23750), (950, 20425), (1075, 18050), (1250, 15523), (1634, 11875), (1805, 10750), (2150, 9025), (2375, 8170), (3610, 5375), (4085, 4750)]