278014750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 565621056

約数和(自身を除く): 287606306

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 131, 250, 262, 325, 650, 653, 655, 1306, 1310, 1625, 1703, 3250, 3265, 3275, 3406, 6530, 6550, 8489, 8515, 16325, 16375, 16978, 17030, 32650, 32750, 42445, 42575, 81625, 84890, 85150, 85543, 163250, 171086, 212225, 212875, 424450, 425750, 427715, 855430, 1061125, 1112059, 2122250, 2138575, 2224118, 4277150, 5560295, 10692875, 11120590, 21385750, 27801475, 55602950, 139007375, 278014750]

約数ペア:

[(1, 278014750), (2, 139007375), (5, 55602950), (10, 27801475), (13, 21385750), (25, 11120590), (26, 10692875), (50, 5560295), (65, 4277150), (125, 2224118), (130, 2138575), (131, 2122250), (250, 1112059), (262, 1061125), (325, 855430), (650, 427715), (653, 425750), (655, 424450), (1306, 212875), (1310, 212225), (1625, 171086), (1703, 163250), (3250, 85543), (3265, 85150), (3275, 84890), (3406, 81625), (6530, 42575), (6550, 42445), (8489, 32750), (8515, 32650), (16325, 17030), (16375, 16978)]