61641320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:427

約数の個数: 128

約数和(自身を含む): 166924800

約数和(自身を除く): 105283480

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 367, 380, 442, 494, 520, 646, 680, 734, 760, 884, 988, 1105, 1235, 1292, 1468, 1615, 1768, 1835, 1976, 2210, 2470, 2584, 2936, 3230, 3670, 4199, 4420, 4771, 4940, 6239, 6460, 6973, 7340, 8398, 8840, 9542, 9880, 12478, 12920, 13946, 14680, 16796, 19084, 20995, 23855, 24956, 27892, 31195, 33592, 34865, 38168, 41990, 47710, 49912, 55784, 62390, 69730, 81107, 83980, 90649, 95420, 118541, 124780, 139460, 162214, 167960, 181298, 190840, 237082, 249560, 278920, 324428, 362596, 405535, 453245, 474164, 592705, 648856, 725192, 811070, 906490, 948328, 1185410, 1541033, 1622140, 1812980, 2370820, 3082066, 3244280, 3625960, 4741640, 6164132, 7705165, 12328264, 15410330, 30820660, 61641320]

約数ペア:

[(1, 61641320), (2, 30820660), (4, 15410330), (5, 12328264), (8, 7705165), (10, 6164132), (13, 4741640), (17, 3625960), (19, 3244280), (20, 3082066), (26, 2370820), (34, 1812980), (38, 1622140), (40, 1541033), (52, 1185410), (65, 948328), (68, 906490), (76, 811070), (85, 725192), (95, 648856), (104, 592705), (130, 474164), (136, 453245), (152, 405535), (170, 362596), (190, 324428), (221, 278920), (247, 249560), (260, 237082), (323, 190840), (340, 181298), (367, 167960), (380, 162214), (442, 139460), (494, 124780), (520, 118541), (646, 95420), (680, 90649), (734, 83980), (760, 81107), (884, 69730), (988, 62390), (1105, 55784), (1235, 49912), (1292, 47710), (1468, 41990), (1615, 38168), (1768, 34865), (1835, 33592), (1976, 31195), (2210, 27892), (2470, 24956), (2584, 23855), (2936, 20995), (3230, 19084), (3670, 16796), (4199, 14680), (4420, 13946), (4771, 12920), (4940, 12478), (6239, 9880), (6460, 9542), (6973, 8840), (7340, 8398)]