19438778875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{1453}}^1$

素因数の和:1661

約数の個数: 64

約数和(自身を含む): 26347875840

約数和(自身を除く): 6909096965

約数列:

[1, 5, 19, 25, 43, 95, 125, 131, 215, 475, 655, 817, 1075, 1453, 2375, 2489, 3275, 4085, 5375, 5633, 7265, 12445, 16375, 20425, 27607, 28165, 36325, 62225, 62479, 102125, 107027, 138035, 140825, 181625, 190343, 311125, 312395, 535135, 690175, 704125, 951715, 1187101, 1561975, 2675675, 3450875, 3616517, 4758575, 5935505, 7809875, 8184749, 13378375, 18082585, 23792875, 29677525, 40923745, 90412925, 148387625, 155510231, 204618725, 452064625, 777551155, 1023093625, 3887755775, 19438778875]

約数ペア:

[(1, 19438778875), (5, 3887755775), (19, 1023093625), (25, 777551155), (43, 452064625), (95, 204618725), (125, 155510231), (131, 148387625), (215, 90412925), (475, 40923745), (655, 29677525), (817, 23792875), (1075, 18082585), (1453, 13378375), (2375, 8184749), (2489, 7809875), (3275, 5935505), (4085, 4758575), (5375, 3616517), (5633, 3450875), (7265, 2675675), (12445, 1561975), (16375, 1187101), (20425, 951715), (27607, 704125), (28165, 690175), (36325, 535135), (62225, 312395), (62479, 311125), (102125, 190343), (107027, 181625), (138035, 140825)]