77888720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{823}}^1$

素因数の和:869

約数の個数: 120

約数和(自身を含む): 224378496

約数和(自身を除く): 146489776

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 169, 182, 208, 260, 280, 338, 364, 455, 520, 560, 676, 728, 823, 845, 910, 1040, 1183, 1352, 1456, 1646, 1690, 1820, 2366, 2704, 3292, 3380, 3640, 4115, 4732, 5761, 5915, 6584, 6760, 7280, 8230, 9464, 10699, 11522, 11830, 13168, 13520, 16460, 18928, 21398, 23044, 23660, 28805, 32920, 42796, 46088, 47320, 53495, 57610, 65840, 74893, 85592, 92176, 94640, 106990, 115220, 139087, 149786, 171184, 213980, 230440, 278174, 299572, 374465, 427960, 460880, 556348, 599144, 695435, 748930, 855920, 973609, 1112696, 1198288, 1390870, 1497860, 1947218, 2225392, 2781740, 2995720, 3894436, 4868045, 5563480, 5991440, 7788872, 9736090, 11126960, 15577744, 19472180, 38944360, 77888720]

約数ペア:

[(1, 77888720), (2, 38944360), (4, 19472180), (5, 15577744), (7, 11126960), (8, 9736090), (10, 7788872), (13, 5991440), (14, 5563480), (16, 4868045), (20, 3894436), (26, 2995720), (28, 2781740), (35, 2225392), (40, 1947218), (52, 1497860), (56, 1390870), (65, 1198288), (70, 1112696), (80, 973609), (91, 855920), (104, 748930), (112, 695435), (130, 599144), (140, 556348), (169, 460880), (182, 427960), (208, 374465), (260, 299572), (280, 278174), (338, 230440), (364, 213980), (455, 171184), (520, 149786), (560, 139087), (676, 115220), (728, 106990), (823, 94640), (845, 92176), (910, 85592), (1040, 74893), (1183, 65840), (1352, 57610), (1456, 53495), (1646, 47320), (1690, 46088), (1820, 42796), (2366, 32920), (2704, 28805), (3292, 23660), (3380, 23044), (3640, 21398), (4115, 18928), (4732, 16460), (5761, 13520), (5915, 13168), (6584, 11830), (6760, 11522), (7280, 10699), (8230, 9464)]