49420980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:726

約数の個数: 144

約数和(自身を含む): 174405504

約数和(自身を除く): 124984524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 366, 420, 427, 549, 610, 630, 643, 732, 854, 915, 1098, 1220, 1260, 1281, 1286, 1708, 1830, 1929, 2135, 2196, 2562, 2572, 2745, 3215, 3660, 3843, 3858, 4270, 4501, 5124, 5490, 5787, 6405, 6430, 7686, 7716, 8540, 9002, 9645, 10980, 11574, 12810, 12860, 13503, 15372, 18004, 19215, 19290, 22505, 23148, 25620, 27006, 28935, 38430, 38580, 39223, 40509, 45010, 54012, 57870, 67515, 76860, 78446, 81018, 90020, 115740, 117669, 135030, 156892, 162036, 196115, 202545, 235338, 270060, 274561, 353007, 392230, 405090, 470676, 549122, 588345, 706014, 784460, 810180, 823683, 1098244, 1176690, 1372805, 1412028, 1647366, 1765035, 2353380, 2471049, 2745610, 3294732, 3530070, 4118415, 4942098, 5491220, 7060140, 8236830, 9884196, 12355245, 16473660, 24710490, 49420980]

約数ペア:

[(1, 49420980), (2, 24710490), (3, 16473660), (4, 12355245), (5, 9884196), (6, 8236830), (7, 7060140), (9, 5491220), (10, 4942098), (12, 4118415), (14, 3530070), (15, 3294732), (18, 2745610), (20, 2471049), (21, 2353380), (28, 1765035), (30, 1647366), (35, 1412028), (36, 1372805), (42, 1176690), (45, 1098244), (60, 823683), (61, 810180), (63, 784460), (70, 706014), (84, 588345), (90, 549122), (105, 470676), (122, 405090), (126, 392230), (140, 353007), (180, 274561), (183, 270060), (210, 235338), (244, 202545), (252, 196115), (305, 162036), (315, 156892), (366, 135030), (420, 117669), (427, 115740), (549, 90020), (610, 81018), (630, 78446), (643, 76860), (732, 67515), (854, 57870), (915, 54012), (1098, 45010), (1220, 40509), (1260, 39223), (1281, 38580), (1286, 38430), (1708, 28935), (1830, 27006), (1929, 25620), (2135, 23148), (2196, 22505), (2562, 19290), (2572, 19215), (2745, 18004), (3215, 15372), (3660, 13503), (3843, 12860), (3858, 12810), (4270, 11574), (4501, 10980), (5124, 9645), (5490, 9002), (5787, 8540), (6405, 7716), (6430, 7686)]