31673320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 55417880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 82, 89, 124, 140, 155, 164, 178, 205, 217, 248, 280, 287, 310, 328, 356, 410, 434, 445, 574, 620, 623, 712, 820, 868, 890, 1085, 1148, 1240, 1246, 1271, 1435, 1640, 1736, 1780, 2170, 2296, 2492, 2542, 2759, 2870, 3115, 3560, 3649, 4340, 4984, 5084, 5518, 5740, 6230, 6355, 7298, 8680, 8897, 10168, 11036, 11480, 12460, 12710, 13795, 14596, 17794, 18245, 19313, 22072, 24920, 25420, 25543, 27590, 29192, 35588, 36490, 38626, 44485, 50840, 51086, 55180, 71176, 72980, 77252, 88970, 96565, 102172, 110360, 113119, 127715, 145960, 154504, 177940, 193130, 204344, 226238, 255430, 355880, 386260, 452476, 510860, 565595, 772520, 791833, 904952, 1021720, 1131190, 1583666, 2262380, 3167332, 3959165, 4524760, 6334664, 7918330, 15836660, 31673320]

約数ペア:

[(1, 31673320), (2, 15836660), (4, 7918330), (5, 6334664), (7, 4524760), (8, 3959165), (10, 3167332), (14, 2262380), (20, 1583666), (28, 1131190), (31, 1021720), (35, 904952), (40, 791833), (41, 772520), (56, 565595), (62, 510860), (70, 452476), (82, 386260), (89, 355880), (124, 255430), (140, 226238), (155, 204344), (164, 193130), (178, 177940), (205, 154504), (217, 145960), (248, 127715), (280, 113119), (287, 110360), (310, 102172), (328, 96565), (356, 88970), (410, 77252), (434, 72980), (445, 71176), (574, 55180), (620, 51086), (623, 50840), (712, 44485), (820, 38626), (868, 36490), (890, 35588), (1085, 29192), (1148, 27590), (1240, 25543), (1246, 25420), (1271, 24920), (1435, 22072), (1640, 19313), (1736, 18245), (1780, 17794), (2170, 14596), (2296, 13795), (2492, 12710), (2542, 12460), (2759, 11480), (2870, 11036), (3115, 10168), (3560, 8897), (3649, 8680), (4340, 7298), (4984, 6355), (5084, 6230), (5518, 5740)]