20612280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:281

約数の個数: 128

約数和(自身を含む): 67878720

約数和(自身を除く): 47266440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 73, 78, 104, 120, 130, 146, 156, 181, 195, 219, 260, 292, 312, 362, 365, 390, 438, 520, 543, 584, 724, 730, 780, 876, 905, 949, 1086, 1095, 1448, 1460, 1560, 1752, 1810, 1898, 2172, 2190, 2353, 2715, 2847, 2920, 3620, 3796, 4344, 4380, 4706, 4745, 5430, 5694, 7059, 7240, 7592, 8760, 9412, 9490, 10860, 11388, 11765, 13213, 14118, 14235, 18824, 18980, 21720, 22776, 23530, 26426, 28236, 28470, 35295, 37960, 39639, 47060, 52852, 56472, 56940, 66065, 70590, 79278, 94120, 105704, 113880, 132130, 141180, 158556, 171769, 198195, 264260, 282360, 317112, 343538, 396390, 515307, 528520, 687076, 792780, 858845, 1030614, 1374152, 1585560, 1717690, 2061228, 2576535, 3435380, 4122456, 5153070, 6870760, 10306140, 20612280]

約数ペア:

[(1, 20612280), (2, 10306140), (3, 6870760), (4, 5153070), (5, 4122456), (6, 3435380), (8, 2576535), (10, 2061228), (12, 1717690), (13, 1585560), (15, 1374152), (20, 1030614), (24, 858845), (26, 792780), (30, 687076), (39, 528520), (40, 515307), (52, 396390), (60, 343538), (65, 317112), (73, 282360), (78, 264260), (104, 198195), (120, 171769), (130, 158556), (146, 141180), (156, 132130), (181, 113880), (195, 105704), (219, 94120), (260, 79278), (292, 70590), (312, 66065), (362, 56940), (365, 56472), (390, 52852), (438, 47060), (520, 39639), (543, 37960), (584, 35295), (724, 28470), (730, 28236), (780, 26426), (876, 23530), (905, 22776), (949, 21720), (1086, 18980), (1095, 18824), (1448, 14235), (1460, 14118), (1560, 13213), (1752, 11765), (1810, 11388), (1898, 10860), (2172, 9490), (2190, 9412), (2353, 8760), (2715, 7592), (2847, 7240), (2920, 7059), (3620, 5694), (3796, 5430), (4344, 4745), (4380, 4706)]