19791450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:189

約数の個数: 144

約数和(自身を含む): 62365056

約数和(自身を除く): 42573606

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 61, 63, 70, 75, 90, 103, 105, 122, 126, 150, 175, 183, 206, 210, 225, 305, 309, 315, 350, 366, 427, 450, 515, 525, 549, 610, 618, 630, 721, 854, 915, 927, 1030, 1050, 1098, 1281, 1442, 1525, 1545, 1575, 1830, 1854, 2135, 2163, 2562, 2575, 2745, 3050, 3090, 3150, 3605, 3843, 4270, 4326, 4575, 4635, 5150, 5490, 6283, 6405, 6489, 7210, 7686, 7725, 9150, 9270, 10675, 10815, 12566, 12810, 12978, 13725, 15450, 18025, 18849, 19215, 21350, 21630, 23175, 27450, 31415, 32025, 32445, 36050, 37698, 38430, 43981, 46350, 54075, 56547, 62830, 64050, 64890, 87962, 94245, 96075, 108150, 113094, 131943, 157075, 162225, 188490, 192150, 219905, 263886, 282735, 314150, 324450, 395829, 439810, 471225, 565470, 659715, 791658, 942450, 1099525, 1319430, 1413675, 1979145, 2199050, 2827350, 3298575, 3958290, 6597150, 9895725, 19791450]

約数ペア:

[(1, 19791450), (2, 9895725), (3, 6597150), (5, 3958290), (6, 3298575), (7, 2827350), (9, 2199050), (10, 1979145), (14, 1413675), (15, 1319430), (18, 1099525), (21, 942450), (25, 791658), (30, 659715), (35, 565470), (42, 471225), (45, 439810), (50, 395829), (61, 324450), (63, 314150), (70, 282735), (75, 263886), (90, 219905), (103, 192150), (105, 188490), (122, 162225), (126, 157075), (150, 131943), (175, 113094), (183, 108150), (206, 96075), (210, 94245), (225, 87962), (305, 64890), (309, 64050), (315, 62830), (350, 56547), (366, 54075), (427, 46350), (450, 43981), (515, 38430), (525, 37698), (549, 36050), (610, 32445), (618, 32025), (630, 31415), (721, 27450), (854, 23175), (915, 21630), (927, 21350), (1030, 19215), (1050, 18849), (1098, 18025), (1281, 15450), (1442, 13725), (1525, 12978), (1545, 12810), (1575, 12566), (1830, 10815), (1854, 10675), (2135, 9270), (2163, 9150), (2562, 7725), (2575, 7686), (2745, 7210), (3050, 6489), (3090, 6405), (3150, 6283), (3605, 5490), (3843, 5150), (4270, 4635), (4326, 4575)]