18871264660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{8353}}^1$

素因数の和:8513

約数の個数: 96

約数和(自身を含む): 42238893312

約数和(自身を除く): 23367628652

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 71, 74, 86, 142, 148, 172, 185, 215, 284, 355, 370, 430, 710, 740, 860, 1420, 1591, 2627, 3053, 3182, 5254, 6106, 6364, 7955, 8353, 10508, 12212, 13135, 15265, 15910, 16706, 26270, 30530, 31820, 33412, 41765, 52540, 61060, 83530, 112961, 167060, 225922, 309061, 359179, 451844, 564805, 593063, 618122, 718358, 1129610, 1186126, 1236244, 1436716, 1545305, 1795895, 2259220, 2372252, 2965315, 3090610, 3591790, 5930630, 6181220, 7183580, 11861260, 13289623, 21943331, 25501709, 26579246, 43886662, 51003418, 53158492, 66448115, 87773324, 102006836, 109716655, 127508545, 132896230, 219433310, 255017090, 265792460, 438866620, 510034180, 943563233, 1887126466, 3774252932, 4717816165, 9435632330, 18871264660]

約数ペア:

[(1, 18871264660), (2, 9435632330), (4, 4717816165), (5, 3774252932), (10, 1887126466), (20, 943563233), (37, 510034180), (43, 438866620), (71, 265792460), (74, 255017090), (86, 219433310), (142, 132896230), (148, 127508545), (172, 109716655), (185, 102006836), (215, 87773324), (284, 66448115), (355, 53158492), (370, 51003418), (430, 43886662), (710, 26579246), (740, 25501709), (860, 21943331), (1420, 13289623), (1591, 11861260), (2627, 7183580), (3053, 6181220), (3182, 5930630), (5254, 3591790), (6106, 3090610), (6364, 2965315), (7955, 2372252), (8353, 2259220), (10508, 1795895), (12212, 1545305), (13135, 1436716), (15265, 1236244), (15910, 1186126), (16706, 1129610), (26270, 718358), (30530, 618122), (31820, 593063), (33412, 564805), (41765, 451844), (52540, 359179), (61060, 309061), (83530, 225922), (112961, 167060)]