642437640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137273}}^1$

素因数の和:137303

約数の個数: 96

約数和(自身を含む): 2248548120

約数和(自身を除く): 1606110480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4680, 137273, 274546, 411819, 549092, 686365, 823638, 1098184, 1235457, 1372730, 1647276, 1784549, 2059095, 2470914, 2745460, 3294552, 3569098, 4118190, 4941828, 5353647, 5490920, 6177285, 7138196, 8236380, 8922745, 9883656, 10707294, 12354570, 14276392, 16060941, 16472760, 17845490, 21414588, 24709140, 26768235, 32121882, 35690980, 42829176, 49418280, 53536470, 64243764, 71381960, 80304705, 107072940, 128487528, 160609410, 214145880, 321218820, 642437640]

約数ペア:

[(1, 642437640), (2, 321218820), (3, 214145880), (4, 160609410), (5, 128487528), (6, 107072940), (8, 80304705), (9, 71381960), (10, 64243764), (12, 53536470), (13, 49418280), (15, 42829176), (18, 35690980), (20, 32121882), (24, 26768235), (26, 24709140), (30, 21414588), (36, 17845490), (39, 16472760), (40, 16060941), (45, 14276392), (52, 12354570), (60, 10707294), (65, 9883656), (72, 8922745), (78, 8236380), (90, 7138196), (104, 6177285), (117, 5490920), (120, 5353647), (130, 4941828), (156, 4118190), (180, 3569098), (195, 3294552), (234, 2745460), (260, 2470914), (312, 2059095), (360, 1784549), (390, 1647276), (468, 1372730), (520, 1235457), (585, 1098184), (780, 823638), (936, 686365), (1170, 549092), (1560, 411819), (2340, 274546), (4680, 137273)]