40723840

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 128

約数和(自身を含む): 109058400

約数和(自身を除く): 68334560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 197, 272, 304, 320, 323, 340, 380, 394, 544, 608, 640, 646, 680, 760, 788, 985, 1088, 1216, 1292, 1360, 1520, 1576, 1615, 1970, 2176, 2432, 2584, 2720, 3040, 3152, 3230, 3349, 3743, 3940, 5168, 5440, 6080, 6304, 6460, 6698, 7486, 7880, 10336, 10880, 12160, 12608, 12920, 13396, 14972, 15760, 16745, 18715, 20672, 25216, 25840, 26792, 29944, 31520, 33490, 37430, 41344, 51680, 53584, 59888, 63040, 63631, 66980, 74860, 103360, 107168, 119776, 126080, 127262, 133960, 149720, 206720, 214336, 239552, 254524, 267920, 299440, 318155, 428672, 479104, 509048, 535840, 598880, 636310, 1018096, 1071680, 1197760, 1272620, 2036192, 2143360, 2395520, 2545240, 4072384, 5090480, 8144768, 10180960, 20361920, 40723840]

約数ペア:

[(1, 40723840), (2, 20361920), (4, 10180960), (5, 8144768), (8, 5090480), (10, 4072384), (16, 2545240), (17, 2395520), (19, 2143360), (20, 2036192), (32, 1272620), (34, 1197760), (38, 1071680), (40, 1018096), (64, 636310), (68, 598880), (76, 535840), (80, 509048), (85, 479104), (95, 428672), (128, 318155), (136, 299440), (152, 267920), (160, 254524), (170, 239552), (190, 214336), (197, 206720), (272, 149720), (304, 133960), (320, 127262), (323, 126080), (340, 119776), (380, 107168), (394, 103360), (544, 74860), (608, 66980), (640, 63631), (646, 63040), (680, 59888), (760, 53584), (788, 51680), (985, 41344), (1088, 37430), (1216, 33490), (1292, 31520), (1360, 29944), (1520, 26792), (1576, 25840), (1615, 25216), (1970, 20672), (2176, 18715), (2432, 16745), (2584, 15760), (2720, 14972), (3040, 13396), (3152, 12920), (3230, 12608), (3349, 12160), (3743, 10880), (3940, 10336), (5168, 7880), (5440, 7486), (6080, 6698), (6304, 6460)]