18250000

素因数分解:

$2^4\times 5^6\times {\mathrm{73}}^1$

素因数の和:111

約数の個数: 70

約数和(自身を含む): 44804114

約数和(自身を除く): 26554114

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 73, 80, 100, 125, 146, 200, 250, 292, 365, 400, 500, 584, 625, 730, 1000, 1168, 1250, 1460, 1825, 2000, 2500, 2920, 3125, 3650, 5000, 5840, 6250, 7300, 9125, 10000, 12500, 14600, 15625, 18250, 25000, 29200, 31250, 36500, 45625, 50000, 62500, 73000, 91250, 125000, 146000, 182500, 228125, 250000, 365000, 456250, 730000, 912500, 1140625, 1825000, 2281250, 3650000, 4562500, 9125000, 18250000]

約数ペア:

[(1, 18250000), (2, 9125000), (4, 4562500), (5, 3650000), (8, 2281250), (10, 1825000), (16, 1140625), (20, 912500), (25, 730000), (40, 456250), (50, 365000), (73, 250000), (80, 228125), (100, 182500), (125, 146000), (146, 125000), (200, 91250), (250, 73000), (292, 62500), (365, 50000), (400, 45625), (500, 36500), (584, 31250), (625, 29200), (730, 25000), (1000, 18250), (1168, 15625), (1250, 14600), (1460, 12500), (1825, 10000), (2000, 9125), (2500, 7300), (2920, 6250), (3125, 5840), (3650, 5000)]