90720420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3541}}^1$

素因数の和:3621

約数の個数: 96

約数和(自身を含む): 295147776

約数和(自身を除く): 204427356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 915, 1220, 1281, 1708, 1830, 2135, 2562, 3541, 3660, 4270, 5124, 6405, 7082, 8540, 10623, 12810, 14164, 17705, 21246, 24787, 25620, 35410, 42492, 49574, 53115, 70820, 74361, 99148, 106230, 123935, 148722, 212460, 216001, 247870, 297444, 371805, 432002, 495740, 648003, 743610, 864004, 1080005, 1296006, 1487220, 1512007, 2160010, 2592012, 3024014, 3240015, 4320020, 4536021, 6048028, 6480030, 7560035, 9072042, 12960060, 15120070, 18144084, 22680105, 30240140, 45360210, 90720420]

約数ペア:

[(1, 90720420), (2, 45360210), (3, 30240140), (4, 22680105), (5, 18144084), (6, 15120070), (7, 12960060), (10, 9072042), (12, 7560035), (14, 6480030), (15, 6048028), (20, 4536021), (21, 4320020), (28, 3240015), (30, 3024014), (35, 2592012), (42, 2160010), (60, 1512007), (61, 1487220), (70, 1296006), (84, 1080005), (105, 864004), (122, 743610), (140, 648003), (183, 495740), (210, 432002), (244, 371805), (305, 297444), (366, 247870), (420, 216001), (427, 212460), (610, 148722), (732, 123935), (854, 106230), (915, 99148), (1220, 74361), (1281, 70820), (1708, 53115), (1830, 49574), (2135, 42492), (2562, 35410), (3541, 25620), (3660, 24787), (4270, 21246), (5124, 17705), (6405, 14164), (7082, 12810), (8540, 10623)]