51870780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{821}}^1$

素因数の和:858

約数の個数: 144

約数和(自身を含む): 175934304

約数和(自身を除く): 124063524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 243, 260, 270, 324, 351, 390, 405, 468, 486, 540, 585, 702, 780, 810, 821, 972, 1053, 1170, 1215, 1404, 1620, 1642, 1755, 2106, 2340, 2430, 2463, 3159, 3284, 3510, 4105, 4212, 4860, 4926, 5265, 6318, 7020, 7389, 8210, 9852, 10530, 10673, 12315, 12636, 14778, 15795, 16420, 21060, 21346, 22167, 24630, 29556, 31590, 32019, 36945, 42692, 44334, 49260, 53365, 63180, 64038, 66501, 73890, 88668, 96057, 106730, 110835, 128076, 133002, 147780, 160095, 192114, 199503, 213460, 221670, 266004, 288171, 320190, 332505, 384228, 399006, 443340, 480285, 576342, 640380, 665010, 798012, 864513, 960570, 997515, 1152684, 1330020, 1440855, 1729026, 1921140, 1995030, 2593539, 2881710, 3458052, 3990060, 4322565, 5187078, 5763420, 8645130, 10374156, 12967695, 17290260, 25935390, 51870780]

約数ペア:

[(1, 51870780), (2, 25935390), (3, 17290260), (4, 12967695), (5, 10374156), (6, 8645130), (9, 5763420), (10, 5187078), (12, 4322565), (13, 3990060), (15, 3458052), (18, 2881710), (20, 2593539), (26, 1995030), (27, 1921140), (30, 1729026), (36, 1440855), (39, 1330020), (45, 1152684), (52, 997515), (54, 960570), (60, 864513), (65, 798012), (78, 665010), (81, 640380), (90, 576342), (108, 480285), (117, 443340), (130, 399006), (135, 384228), (156, 332505), (162, 320190), (180, 288171), (195, 266004), (234, 221670), (243, 213460), (260, 199503), (270, 192114), (324, 160095), (351, 147780), (390, 133002), (405, 128076), (468, 110835), (486, 106730), (540, 96057), (585, 88668), (702, 73890), (780, 66501), (810, 64038), (821, 63180), (972, 53365), (1053, 49260), (1170, 44334), (1215, 42692), (1404, 36945), (1620, 32019), (1642, 31590), (1755, 29556), (2106, 24630), (2340, 22167), (2430, 21346), (2463, 21060), (3159, 16420), (3284, 15795), (3510, 14778), (4105, 12636), (4212, 12315), (4860, 10673), (4926, 10530), (5265, 9852), (6318, 8210), (7020, 7389)]