19541350

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 38055600

約数和(自身を除く): 18514250

約数列:

[1, 2, 5, 10, 25, 43, 50, 61, 86, 122, 149, 215, 298, 305, 430, 610, 745, 1075, 1490, 1525, 2150, 2623, 3050, 3725, 5246, 6407, 7450, 9089, 12814, 13115, 18178, 26230, 32035, 45445, 64070, 65575, 90890, 131150, 160175, 227225, 320350, 390827, 454450, 781654, 1954135, 3908270, 9770675, 19541350]

約数ペア:

[(1, 19541350), (2, 9770675), (5, 3908270), (10, 1954135), (25, 781654), (43, 454450), (50, 390827), (61, 320350), (86, 227225), (122, 160175), (149, 131150), (215, 90890), (298, 65575), (305, 64070), (430, 45445), (610, 32035), (745, 26230), (1075, 18178), (1490, 13115), (1525, 12814), (2150, 9089), (2623, 7450), (3050, 6407), (3725, 5246)]