19704750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 128

約数和(自身を含む): 55351296

約数和(自身を除く): 35646546

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 43, 47, 50, 65, 75, 78, 86, 94, 125, 129, 130, 141, 150, 195, 215, 235, 250, 258, 282, 325, 375, 390, 430, 470, 559, 611, 645, 650, 705, 750, 975, 1075, 1118, 1175, 1222, 1290, 1410, 1625, 1677, 1833, 1950, 2021, 2150, 2350, 2795, 3055, 3225, 3250, 3354, 3525, 3666, 4042, 4875, 5375, 5590, 5875, 6063, 6110, 6450, 7050, 8385, 9165, 9750, 10105, 10750, 11750, 12126, 13975, 15275, 16125, 16770, 17625, 18330, 20210, 26273, 27950, 30315, 30550, 32250, 35250, 41925, 45825, 50525, 52546, 60630, 69875, 76375, 78819, 83850, 91650, 101050, 131365, 139750, 151575, 152750, 157638, 209625, 229125, 252625, 262730, 303150, 394095, 419250, 458250, 505250, 656825, 757875, 788190, 1313650, 1515750, 1970475, 3284125, 3940950, 6568250, 9852375, 19704750]

約数ペア:

[(1, 19704750), (2, 9852375), (3, 6568250), (5, 3940950), (6, 3284125), (10, 1970475), (13, 1515750), (15, 1313650), (25, 788190), (26, 757875), (30, 656825), (39, 505250), (43, 458250), (47, 419250), (50, 394095), (65, 303150), (75, 262730), (78, 252625), (86, 229125), (94, 209625), (125, 157638), (129, 152750), (130, 151575), (141, 139750), (150, 131365), (195, 101050), (215, 91650), (235, 83850), (250, 78819), (258, 76375), (282, 69875), (325, 60630), (375, 52546), (390, 50525), (430, 45825), (470, 41925), (559, 35250), (611, 32250), (645, 30550), (650, 30315), (705, 27950), (750, 26273), (975, 20210), (1075, 18330), (1118, 17625), (1175, 16770), (1222, 16125), (1290, 15275), (1410, 13975), (1625, 12126), (1677, 11750), (1833, 10750), (1950, 10105), (2021, 9750), (2150, 9165), (2350, 8385), (2795, 7050), (3055, 6450), (3225, 6110), (3250, 6063), (3354, 5875), (3525, 5590), (3666, 5375), (4042, 4875)]