19847100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{727}}^1$

素因数の和:764

約数の個数: 144

約数和(自身を含む): 70773248

約数和(自身を除く): 50926148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 65, 70, 75, 78, 84, 91, 100, 105, 130, 140, 150, 156, 175, 182, 195, 210, 260, 273, 300, 325, 350, 364, 390, 420, 455, 525, 546, 650, 700, 727, 780, 910, 975, 1050, 1092, 1300, 1365, 1454, 1820, 1950, 2100, 2181, 2275, 2730, 2908, 3635, 3900, 4362, 4550, 5089, 5460, 6825, 7270, 8724, 9100, 9451, 10178, 10905, 13650, 14540, 15267, 18175, 18902, 20356, 21810, 25445, 27300, 28353, 30534, 36350, 37804, 43620, 47255, 50890, 54525, 56706, 61068, 66157, 72700, 76335, 94510, 101780, 109050, 113412, 127225, 132314, 141765, 152670, 189020, 198471, 218100, 236275, 254450, 264628, 283530, 305340, 330785, 381675, 396942, 472550, 508900, 567060, 661570, 708825, 763350, 793884, 945100, 992355, 1323140, 1417650, 1526700, 1653925, 1984710, 2835300, 3307850, 3969420, 4961775, 6615700, 9923550, 19847100]

約数ペア:

[(1, 19847100), (2, 9923550), (3, 6615700), (4, 4961775), (5, 3969420), (6, 3307850), (7, 2835300), (10, 1984710), (12, 1653925), (13, 1526700), (14, 1417650), (15, 1323140), (20, 992355), (21, 945100), (25, 793884), (26, 763350), (28, 708825), (30, 661570), (35, 567060), (39, 508900), (42, 472550), (50, 396942), (52, 381675), (60, 330785), (65, 305340), (70, 283530), (75, 264628), (78, 254450), (84, 236275), (91, 218100), (100, 198471), (105, 189020), (130, 152670), (140, 141765), (150, 132314), (156, 127225), (175, 113412), (182, 109050), (195, 101780), (210, 94510), (260, 76335), (273, 72700), (300, 66157), (325, 61068), (350, 56706), (364, 54525), (390, 50890), (420, 47255), (455, 43620), (525, 37804), (546, 36350), (650, 30534), (700, 28353), (727, 27300), (780, 25445), (910, 21810), (975, 20356), (1050, 18902), (1092, 18175), (1300, 15267), (1365, 14540), (1454, 13650), (1820, 10905), (1950, 10178), (2100, 9451), (2181, 9100), (2275, 8724), (2730, 7270), (2908, 6825), (3635, 5460), (3900, 5089), (4362, 4550)]