61778920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 169827840

約数和(自身を除く): 108048920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 53, 56, 70, 92, 106, 115, 140, 161, 181, 184, 212, 230, 265, 280, 322, 362, 371, 424, 460, 530, 644, 724, 742, 805, 905, 920, 1060, 1219, 1267, 1288, 1448, 1484, 1610, 1810, 1855, 2120, 2438, 2534, 2968, 3220, 3620, 3710, 4163, 4876, 5068, 6095, 6335, 6440, 7240, 7420, 8326, 8533, 9593, 9752, 10136, 12190, 12670, 14840, 16652, 17066, 19186, 20815, 24380, 25340, 29141, 33304, 34132, 38372, 41630, 42665, 47965, 48760, 50680, 58282, 67151, 68264, 76744, 83260, 85330, 95930, 116564, 134302, 145705, 166520, 170660, 191860, 220639, 233128, 268604, 291410, 335755, 341320, 383720, 441278, 537208, 582820, 671510, 882556, 1103195, 1165640, 1343020, 1544473, 1765112, 2206390, 2686040, 3088946, 4412780, 6177892, 7722365, 8825560, 12355784, 15444730, 30889460, 61778920]

約数ペア:

[(1, 61778920), (2, 30889460), (4, 15444730), (5, 12355784), (7, 8825560), (8, 7722365), (10, 6177892), (14, 4412780), (20, 3088946), (23, 2686040), (28, 2206390), (35, 1765112), (40, 1544473), (46, 1343020), (53, 1165640), (56, 1103195), (70, 882556), (92, 671510), (106, 582820), (115, 537208), (140, 441278), (161, 383720), (181, 341320), (184, 335755), (212, 291410), (230, 268604), (265, 233128), (280, 220639), (322, 191860), (362, 170660), (371, 166520), (424, 145705), (460, 134302), (530, 116564), (644, 95930), (724, 85330), (742, 83260), (805, 76744), (905, 68264), (920, 67151), (1060, 58282), (1219, 50680), (1267, 48760), (1288, 47965), (1448, 42665), (1484, 41630), (1610, 38372), (1810, 34132), (1855, 33304), (2120, 29141), (2438, 25340), (2534, 24380), (2968, 20815), (3220, 19186), (3620, 17066), (3710, 16652), (4163, 14840), (4876, 12670), (5068, 12190), (6095, 10136), (6335, 9752), (6440, 9593), (7240, 8533), (7420, 8326)]