257020980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{225457}}^1$

素因数の和:225488

約数の個数: 48

約数和(自身を含む): 757538880

約数和(自身を除く): 500517900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 225457, 450914, 676371, 901828, 1127285, 1352742, 2254570, 2705484, 3381855, 4283683, 4509140, 6763710, 8567366, 12851049, 13527420, 17134732, 21418415, 25702098, 42836830, 51404196, 64255245, 85673660, 128510490, 257020980]

約数ペア:

[(1, 257020980), (2, 128510490), (3, 85673660), (4, 64255245), (5, 51404196), (6, 42836830), (10, 25702098), (12, 21418415), (15, 17134732), (19, 13527420), (20, 12851049), (30, 8567366), (38, 6763710), (57, 4509140), (60, 4283683), (76, 3381855), (95, 2705484), (114, 2254570), (190, 1352742), (228, 1127285), (285, 901828), (380, 676371), (570, 450914), (1140, 225457)]