20880300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 70606592

約数和(自身を除く): 49726292

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 61, 70, 75, 84, 100, 105, 122, 140, 150, 163, 175, 183, 210, 244, 300, 305, 326, 350, 366, 420, 427, 489, 525, 610, 652, 700, 732, 815, 854, 915, 978, 1050, 1141, 1220, 1281, 1525, 1630, 1708, 1830, 1956, 2100, 2135, 2282, 2445, 2562, 3050, 3260, 3423, 3660, 4075, 4270, 4564, 4575, 4890, 5124, 5705, 6100, 6405, 6846, 8150, 8540, 9150, 9780, 9943, 10675, 11410, 12225, 12810, 13692, 16300, 17115, 18300, 19886, 21350, 22820, 24450, 25620, 28525, 29829, 32025, 34230, 39772, 42700, 48900, 49715, 57050, 59658, 64050, 68460, 69601, 85575, 99430, 114100, 119316, 128100, 139202, 149145, 171150, 198860, 208803, 248575, 278404, 298290, 342300, 348005, 417606, 497150, 596580, 696010, 745725, 835212, 994300, 1044015, 1392020, 1491450, 1740025, 2088030, 2982900, 3480050, 4176060, 5220075, 6960100, 10440150, 20880300]

約数ペア:

[(1, 20880300), (2, 10440150), (3, 6960100), (4, 5220075), (5, 4176060), (6, 3480050), (7, 2982900), (10, 2088030), (12, 1740025), (14, 1491450), (15, 1392020), (20, 1044015), (21, 994300), (25, 835212), (28, 745725), (30, 696010), (35, 596580), (42, 497150), (50, 417606), (60, 348005), (61, 342300), (70, 298290), (75, 278404), (84, 248575), (100, 208803), (105, 198860), (122, 171150), (140, 149145), (150, 139202), (163, 128100), (175, 119316), (183, 114100), (210, 99430), (244, 85575), (300, 69601), (305, 68460), (326, 64050), (350, 59658), (366, 57050), (420, 49715), (427, 48900), (489, 42700), (525, 39772), (610, 34230), (652, 32025), (700, 29829), (732, 28525), (815, 25620), (854, 24450), (915, 22820), (978, 21350), (1050, 19886), (1141, 18300), (1220, 17115), (1281, 16300), (1525, 13692), (1630, 12810), (1708, 12225), (1830, 11410), (1956, 10675), (2100, 9943), (2135, 9780), (2282, 9150), (2445, 8540), (2562, 8150), (3050, 6846), (3260, 6405), (3423, 6100), (3660, 5705), (4075, 5124), (4270, 4890), (4564, 4575)]