21380366280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1957909}}^1$

素因数の和:1957943

約数の個数: 128

約数和(自身を含む): 78942931200

約数和(自身を除く): 57562564920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 1957909, 3915818, 5873727, 7831636, 9789545, 11747454, 13705363, 15663272, 19579090, 23494908, 25452817, 27410726, 29368635, 39158180, 41116089, 46989816, 50905634, 54821452, 58737270, 68526815, 76358451, 78316360, 82232178, 101811268, 109642904, 117474540, 127264085, 137053630, 152716902, 164464356, 178169719, 203622536, 205580445, 234949080, 254528170, 274107260, 305433804, 328928712, 356339438, 381792255, 411160890, 509056340, 534509157, 548214520, 610867608, 712678876, 763584510, 822321780, 890848595, 1018112680, 1069018314, 1425357752, 1527169020, 1644643560, 1781697190, 2138036628, 2672545785, 3054338040, 3563394380, 4276073256, 5345091570, 7126788760, 10690183140, 21380366280]

約数ペア:

[(1, 21380366280), (2, 10690183140), (3, 7126788760), (4, 5345091570), (5, 4276073256), (6, 3563394380), (7, 3054338040), (8, 2672545785), (10, 2138036628), (12, 1781697190), (13, 1644643560), (14, 1527169020), (15, 1425357752), (20, 1069018314), (21, 1018112680), (24, 890848595), (26, 822321780), (28, 763584510), (30, 712678876), (35, 610867608), (39, 548214520), (40, 534509157), (42, 509056340), (52, 411160890), (56, 381792255), (60, 356339438), (65, 328928712), (70, 305433804), (78, 274107260), (84, 254528170), (91, 234949080), (104, 205580445), (105, 203622536), (120, 178169719), (130, 164464356), (140, 152716902), (156, 137053630), (168, 127264085), (182, 117474540), (195, 109642904), (210, 101811268), (260, 82232178), (273, 78316360), (280, 76358451), (312, 68526815), (364, 58737270), (390, 54821452), (420, 50905634), (455, 46989816), (520, 41116089), (546, 39158180), (728, 29368635), (780, 27410726), (840, 25452817), (910, 23494908), (1092, 19579090), (1365, 15663272), (1560, 13705363), (1820, 11747454), (2184, 9789545), (2730, 7831636), (3640, 5873727), (5460, 3915818), (10920, 1957909)]