20728879080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1898249}}^1$

素因数の和:1898283

約数の個数: 128

約数和(自身を含む): 76537440000

約数和(自身を除く): 55808560920

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, 1898249, 3796498, 5694747, 7592996, 9491245, 11389494, 13287743, 15185992, 18982490, 22778988, 24677237, 26575486, 28473735, 37964980, 39863229, 45557976, 49354474, 53150972, 56947470, 66438715, 74031711, 75929960, 79726458, 98708948, 106301944, 113894940, 123386185, 132877430, 148063422, 159452916, 172740659, 197417896, 199316145, 227789880, 246772370, 265754860, 296126844, 318905832, 345481318, 370158555, 398632290, 493544740, 518221977, 531509720, 592253688, 690962636, 740317110, 797264580, 863703295, 987089480, 1036443954, 1381925272, 1480634220, 1594529160, 1727406590, 2072887908, 2591109885, 2961268440, 3454813180, 4145775816, 5182219770, 6909626360, 10364439540, 20728879080]

約数ペア:

[(1, 20728879080), (2, 10364439540), (3, 6909626360), (4, 5182219770), (5, 4145775816), (6, 3454813180), (7, 2961268440), (8, 2591109885), (10, 2072887908), (12, 1727406590), (13, 1594529160), (14, 1480634220), (15, 1381925272), (20, 1036443954), (21, 987089480), (24, 863703295), (26, 797264580), (28, 740317110), (30, 690962636), (35, 592253688), (39, 531509720), (40, 518221977), (42, 493544740), (52, 398632290), (56, 370158555), (60, 345481318), (65, 318905832), (70, 296126844), (78, 265754860), (84, 246772370), (91, 227789880), (104, 199316145), (105, 197417896), (120, 172740659), (130, 159452916), (140, 148063422), (156, 132877430), (168, 123386185), (182, 113894940), (195, 106301944), (210, 98708948), (260, 79726458), (273, 75929960), (280, 74031711), (312, 66438715), (364, 56947470), (390, 53150972), (420, 49354474), (455, 45557976), (520, 39863229), (546, 37964980), (728, 28473735), (780, 26575486), (840, 24677237), (910, 22778988), (1092, 18982490), (1365, 15185992), (1560, 13287743), (1820, 11389494), (2184, 9491245), (2730, 7592996), (3640, 5694747), (5460, 3796498), (10920, 1898249)]