20123231440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{8573}}^1$

素因数の和:8697

約数の個数: 160

約数和(自身を含む): 52601695776

約数和(自身を除く): 32478464336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 61, 65, 74, 80, 104, 122, 130, 148, 185, 208, 244, 260, 296, 305, 370, 481, 488, 520, 592, 610, 740, 793, 962, 976, 1040, 1220, 1480, 1586, 1924, 2257, 2405, 2440, 2960, 3172, 3848, 3965, 4514, 4810, 4880, 6344, 7696, 7930, 8573, 9028, 9620, 11285, 12688, 15860, 17146, 18056, 19240, 22570, 29341, 31720, 34292, 36112, 38480, 42865, 45140, 58682, 63440, 68584, 85730, 90280, 111449, 117364, 137168, 146705, 171460, 180560, 222898, 234728, 293410, 317201, 342920, 445796, 469456, 522953, 557245, 586820, 634402, 685840, 891592, 1045906, 1114490, 1173640, 1268804, 1586005, 1783184, 2091812, 2228980, 2347280, 2537608, 2614765, 3172010, 4123613, 4183624, 4457960, 5075216, 5229530, 6344020, 6798389, 8247226, 8367248, 8915920, 10459060, 12688040, 13596778, 16494452, 19349261, 20618065, 20918120, 25376080, 27193556, 32988904, 33991945, 38698522, 41236130, 41836240, 54387112, 65977808, 67983890, 77397044, 82472260, 96746305, 108774224, 135967780, 154794088, 164944520, 193492610, 251540393, 271935560, 309588176, 329889040, 386985220, 503080786, 543871120, 773970440, 1006161572, 1257701965, 1547940880, 2012323144, 2515403930, 4024646288, 5030807860, 10061615720, 20123231440]

約数ペア:

[(1, 20123231440), (2, 10061615720), (4, 5030807860), (5, 4024646288), (8, 2515403930), (10, 2012323144), (13, 1547940880), (16, 1257701965), (20, 1006161572), (26, 773970440), (37, 543871120), (40, 503080786), (52, 386985220), (61, 329889040), (65, 309588176), (74, 271935560), (80, 251540393), (104, 193492610), (122, 164944520), (130, 154794088), (148, 135967780), (185, 108774224), (208, 96746305), (244, 82472260), (260, 77397044), (296, 67983890), (305, 65977808), (370, 54387112), (481, 41836240), (488, 41236130), (520, 38698522), (592, 33991945), (610, 32988904), (740, 27193556), (793, 25376080), (962, 20918120), (976, 20618065), (1040, 19349261), (1220, 16494452), (1480, 13596778), (1586, 12688040), (1924, 10459060), (2257, 8915920), (2405, 8367248), (2440, 8247226), (2960, 6798389), (3172, 6344020), (3848, 5229530), (3965, 5075216), (4514, 4457960), (4810, 4183624), (4880, 4123613), (6344, 3172010), (7696, 2614765), (7930, 2537608), (8573, 2347280), (9028, 2228980), (9620, 2091812), (11285, 1783184), (12688, 1586005), (15860, 1268804), (17146, 1173640), (18056, 1114490), (19240, 1045906), (22570, 891592), (29341, 685840), (31720, 634402), (34292, 586820), (36112, 557245), (38480, 522953), (42865, 469456), (45140, 445796), (58682, 342920), (63440, 317201), (68584, 293410), (85730, 234728), (90280, 222898), (111449, 180560), (117364, 171460), (137168, 146705)]