72145280

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:404

約数の個数: 128

約数和(自身を含む): 192780000

約数和(自身を除く): 120634720

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, 272, 304, 320, 323, 340, 349, 380, 544, 608, 640, 646, 680, 698, 760, 1088, 1216, 1292, 1360, 1396, 1520, 1615, 1745, 2176, 2432, 2584, 2720, 2792, 3040, 3230, 3490, 5168, 5440, 5584, 5933, 6080, 6460, 6631, 6980, 10336, 10880, 11168, 11866, 12160, 12920, 13262, 13960, 20672, 22336, 23732, 25840, 26524, 27920, 29665, 33155, 41344, 44672, 47464, 51680, 53048, 55840, 59330, 66310, 94928, 103360, 106096, 111680, 112727, 118660, 132620, 189856, 206720, 212192, 223360, 225454, 237320, 265240, 379712, 424384, 450908, 474640, 530480, 563635, 759424, 848768, 901816, 949280, 1060960, 1127270, 1803632, 1898560, 2121920, 2254540, 3607264, 3797120, 4243840, 4509080, 7214528, 9018160, 14429056, 18036320, 36072640, 72145280]

約数ペア:

[(1, 72145280), (2, 36072640), (4, 18036320), (5, 14429056), (8, 9018160), (10, 7214528), (16, 4509080), (17, 4243840), (19, 3797120), (20, 3607264), (32, 2254540), (34, 2121920), (38, 1898560), (40, 1803632), (64, 1127270), (68, 1060960), (76, 949280), (80, 901816), (85, 848768), (95, 759424), (128, 563635), (136, 530480), (152, 474640), (160, 450908), (170, 424384), (190, 379712), (272, 265240), (304, 237320), (320, 225454), (323, 223360), (340, 212192), (349, 206720), (380, 189856), (544, 132620), (608, 118660), (640, 112727), (646, 111680), (680, 106096), (698, 103360), (760, 94928), (1088, 66310), (1216, 59330), (1292, 55840), (1360, 53048), (1396, 51680), (1520, 47464), (1615, 44672), (1745, 41344), (2176, 33155), (2432, 29665), (2584, 27920), (2720, 26524), (2792, 25840), (3040, 23732), (3230, 22336), (3490, 20672), (5168, 13960), (5440, 13262), (5584, 12920), (5933, 12160), (6080, 11866), (6460, 11168), (6631, 10880), (6980, 10336)]