31563560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 128

約数和(自身を含む): 90720000

約数和(自身を除く): 59156440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 349, 380, 476, 532, 595, 646, 665, 680, 698, 760, 952, 1064, 1190, 1292, 1330, 1396, 1615, 1745, 2261, 2380, 2443, 2584, 2660, 2792, 3230, 3490, 4522, 4760, 4886, 5320, 5933, 6460, 6631, 6980, 9044, 9772, 11305, 11866, 12215, 12920, 13262, 13960, 18088, 19544, 22610, 23732, 24430, 26524, 29665, 33155, 41531, 45220, 46417, 47464, 48860, 53048, 59330, 66310, 83062, 90440, 92834, 97720, 112727, 118660, 132620, 166124, 185668, 207655, 225454, 232085, 237320, 265240, 332248, 371336, 415310, 450908, 464170, 563635, 789089, 830620, 901816, 928340, 1127270, 1578178, 1661240, 1856680, 2254540, 3156356, 3945445, 4509080, 6312712, 7890890, 15781780, 31563560]

約数ペア:

[(1, 31563560), (2, 15781780), (4, 7890890), (5, 6312712), (7, 4509080), (8, 3945445), (10, 3156356), (14, 2254540), (17, 1856680), (19, 1661240), (20, 1578178), (28, 1127270), (34, 928340), (35, 901816), (38, 830620), (40, 789089), (56, 563635), (68, 464170), (70, 450908), (76, 415310), (85, 371336), (95, 332248), (119, 265240), (133, 237320), (136, 232085), (140, 225454), (152, 207655), (170, 185668), (190, 166124), (238, 132620), (266, 118660), (280, 112727), (323, 97720), (340, 92834), (349, 90440), (380, 83062), (476, 66310), (532, 59330), (595, 53048), (646, 48860), (665, 47464), (680, 46417), (698, 45220), (760, 41531), (952, 33155), (1064, 29665), (1190, 26524), (1292, 24430), (1330, 23732), (1396, 22610), (1615, 19544), (1745, 18088), (2261, 13960), (2380, 13262), (2443, 12920), (2584, 12215), (2660, 11866), (2792, 11305), (3230, 9772), (3490, 9044), (4522, 6980), (4760, 6631), (4886, 6460), (5320, 5933)]