215981892

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:686

約数の個数: 144

約数和(自身を含む): 666265600

約数和(自身を除く): 450283708

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 79, 84, 114, 126, 133, 158, 171, 228, 237, 252, 266, 316, 342, 399, 474, 532, 553, 571, 684, 711, 798, 948, 1106, 1142, 1197, 1422, 1501, 1596, 1659, 1713, 2212, 2284, 2394, 2844, 3002, 3318, 3426, 3997, 4503, 4788, 4977, 5139, 6004, 6636, 6852, 7994, 9006, 9954, 10278, 10507, 10849, 11991, 13509, 15988, 18012, 19908, 20556, 21014, 21698, 23982, 27018, 31521, 32547, 35973, 42028, 43396, 45109, 47964, 54036, 63042, 65094, 71946, 75943, 90218, 94563, 97641, 126084, 130188, 135327, 143892, 151886, 180436, 189126, 195282, 227829, 270654, 303772, 315763, 378252, 390564, 405981, 455658, 541308, 631526, 683487, 811962, 857071, 911316, 947289, 1263052, 1366974, 1623924, 1714142, 1894578, 2571213, 2733948, 2841867, 3428284, 3789156, 5142426, 5683734, 5999497, 7713639, 10284852, 11367468, 11998994, 15427278, 17998491, 23997988, 30854556, 35996982, 53995473, 71993964, 107990946, 215981892]

約数ペア:

[(1, 215981892), (2, 107990946), (3, 71993964), (4, 53995473), (6, 35996982), (7, 30854556), (9, 23997988), (12, 17998491), (14, 15427278), (18, 11998994), (19, 11367468), (21, 10284852), (28, 7713639), (36, 5999497), (38, 5683734), (42, 5142426), (57, 3789156), (63, 3428284), (76, 2841867), (79, 2733948), (84, 2571213), (114, 1894578), (126, 1714142), (133, 1623924), (158, 1366974), (171, 1263052), (228, 947289), (237, 911316), (252, 857071), (266, 811962), (316, 683487), (342, 631526), (399, 541308), (474, 455658), (532, 405981), (553, 390564), (571, 378252), (684, 315763), (711, 303772), (798, 270654), (948, 227829), (1106, 195282), (1142, 189126), (1197, 180436), (1422, 151886), (1501, 143892), (1596, 135327), (1659, 130188), (1713, 126084), (2212, 97641), (2284, 94563), (2394, 90218), (2844, 75943), (3002, 71946), (3318, 65094), (3426, 63042), (3997, 54036), (4503, 47964), (4788, 45109), (4977, 43396), (5139, 42028), (6004, 35973), (6636, 32547), (6852, 31521), (7994, 27018), (9006, 23982), (9954, 21698), (10278, 21014), (10507, 20556), (10849, 19908), (11991, 18012), (13509, 15988)]