20687160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 68040000

約数和(自身を除く): 47352840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 89, 104, 120, 130, 149, 156, 178, 195, 260, 267, 298, 312, 356, 390, 445, 447, 520, 534, 596, 712, 745, 780, 890, 894, 1068, 1157, 1192, 1335, 1490, 1560, 1780, 1788, 1937, 2136, 2235, 2314, 2670, 2980, 3471, 3560, 3576, 3874, 4470, 4628, 5340, 5785, 5811, 5960, 6942, 7748, 8940, 9256, 9685, 10680, 11570, 11622, 13261, 13884, 15496, 17355, 17880, 19370, 23140, 23244, 26522, 27768, 29055, 34710, 38740, 39783, 46280, 46488, 53044, 58110, 66305, 69420, 77480, 79566, 106088, 116220, 132610, 138840, 159132, 172393, 198915, 232440, 265220, 318264, 344786, 397830, 517179, 530440, 689572, 795660, 861965, 1034358, 1379144, 1591320, 1723930, 2068716, 2585895, 3447860, 4137432, 5171790, 6895720, 10343580, 20687160]

約数ペア:

[(1, 20687160), (2, 10343580), (3, 6895720), (4, 5171790), (5, 4137432), (6, 3447860), (8, 2585895), (10, 2068716), (12, 1723930), (13, 1591320), (15, 1379144), (20, 1034358), (24, 861965), (26, 795660), (30, 689572), (39, 530440), (40, 517179), (52, 397830), (60, 344786), (65, 318264), (78, 265220), (89, 232440), (104, 198915), (120, 172393), (130, 159132), (149, 138840), (156, 132610), (178, 116220), (195, 106088), (260, 79566), (267, 77480), (298, 69420), (312, 66305), (356, 58110), (390, 53044), (445, 46488), (447, 46280), (520, 39783), (534, 38740), (596, 34710), (712, 29055), (745, 27768), (780, 26522), (890, 23244), (894, 23140), (1068, 19370), (1157, 17880), (1192, 17355), (1335, 15496), (1490, 13884), (1560, 13261), (1780, 11622), (1788, 11570), (1937, 10680), (2136, 9685), (2235, 9256), (2314, 8940), (2670, 7748), (2980, 6942), (3471, 5960), (3560, 5811), (3576, 5785), (3874, 5340), (4470, 4628)]