25115580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:696

約数の個数: 144

約数和(自身を含む): 90015744

約数和(自身を除く): 64900164

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 60, 62, 63, 70, 84, 90, 93, 105, 124, 126, 140, 155, 180, 186, 210, 217, 252, 279, 310, 315, 372, 420, 434, 465, 558, 620, 630, 643, 651, 868, 930, 1085, 1116, 1260, 1286, 1302, 1395, 1860, 1929, 1953, 2170, 2572, 2604, 2790, 3215, 3255, 3858, 3906, 4340, 4501, 5580, 5787, 6430, 6510, 7716, 7812, 9002, 9645, 9765, 11574, 12860, 13020, 13503, 18004, 19290, 19530, 19933, 22505, 23148, 27006, 28935, 38580, 39060, 39866, 40509, 45010, 54012, 57870, 59799, 67515, 79732, 81018, 90020, 99665, 115740, 119598, 135030, 139531, 162036, 179397, 199330, 202545, 239196, 270060, 279062, 298995, 358794, 398660, 405090, 418593, 558124, 597990, 697655, 717588, 810180, 837186, 896985, 1195980, 1255779, 1395310, 1674372, 1793970, 2092965, 2511558, 2790620, 3587940, 4185930, 5023116, 6278895, 8371860, 12557790, 25115580]

約数ペア:

[(1, 25115580), (2, 12557790), (3, 8371860), (4, 6278895), (5, 5023116), (6, 4185930), (7, 3587940), (9, 2790620), (10, 2511558), (12, 2092965), (14, 1793970), (15, 1674372), (18, 1395310), (20, 1255779), (21, 1195980), (28, 896985), (30, 837186), (31, 810180), (35, 717588), (36, 697655), (42, 597990), (45, 558124), (60, 418593), (62, 405090), (63, 398660), (70, 358794), (84, 298995), (90, 279062), (93, 270060), (105, 239196), (124, 202545), (126, 199330), (140, 179397), (155, 162036), (180, 139531), (186, 135030), (210, 119598), (217, 115740), (252, 99665), (279, 90020), (310, 81018), (315, 79732), (372, 67515), (420, 59799), (434, 57870), (465, 54012), (558, 45010), (620, 40509), (630, 39866), (643, 39060), (651, 38580), (868, 28935), (930, 27006), (1085, 23148), (1116, 22505), (1260, 19933), (1286, 19530), (1302, 19290), (1395, 18004), (1860, 13503), (1929, 13020), (1953, 12860), (2170, 11574), (2572, 9765), (2604, 9645), (2790, 9002), (3215, 7812), (3255, 7716), (3858, 6510), (3906, 6430), (4340, 5787), (4501, 5580)]