19243250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 21012238

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 125, 130, 155, 191, 250, 310, 325, 382, 403, 650, 775, 806, 955, 1550, 1625, 1910, 2015, 2483, 3250, 3875, 4030, 4775, 4966, 5921, 7750, 9550, 10075, 11842, 12415, 20150, 23875, 24830, 29605, 47750, 50375, 59210, 62075, 76973, 100750, 124150, 148025, 153946, 296050, 310375, 384865, 620750, 740125, 769730, 1480250, 1924325, 3848650, 9621625, 19243250]

約数ペア:

[(1, 19243250), (2, 9621625), (5, 3848650), (10, 1924325), (13, 1480250), (25, 769730), (26, 740125), (31, 620750), (50, 384865), (62, 310375), (65, 296050), (125, 153946), (130, 148025), (155, 124150), (191, 100750), (250, 76973), (310, 62075), (325, 59210), (382, 50375), (403, 47750), (650, 29605), (775, 24830), (806, 23875), (955, 20150), (1550, 12415), (1625, 11842), (1910, 10075), (2015, 9550), (2483, 7750), (3250, 5921), (3875, 4966), (4030, 4775)]