161281560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2003}}^1$

素因数の和:2089

約数の個数: 128

約数和(自身を含む): 536751360

約数和(自身を除く): 375469800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2003, 2013, 2440, 2684, 3355, 3660, 4006, 4026, 5368, 6009, 6710, 7320, 8012, 8052, 10015, 10065, 12018, 13420, 16024, 16104, 20030, 20130, 22033, 24036, 26840, 30045, 40060, 40260, 44066, 48072, 60090, 66099, 80120, 80520, 88132, 110165, 120180, 122183, 132198, 176264, 220330, 240360, 244366, 264396, 330495, 366549, 440660, 488732, 528792, 610915, 660990, 733098, 881320, 977464, 1221830, 1321980, 1344013, 1466196, 1832745, 2443660, 2643960, 2688026, 2932392, 3665490, 4032039, 4887320, 5376052, 6720065, 7330980, 8064078, 10752104, 13440130, 14661960, 16128156, 20160195, 26880260, 32256312, 40320390, 53760520, 80640780, 161281560]

約数ペア:

[(1, 161281560), (2, 80640780), (3, 53760520), (4, 40320390), (5, 32256312), (6, 26880260), (8, 20160195), (10, 16128156), (11, 14661960), (12, 13440130), (15, 10752104), (20, 8064078), (22, 7330980), (24, 6720065), (30, 5376052), (33, 4887320), (40, 4032039), (44, 3665490), (55, 2932392), (60, 2688026), (61, 2643960), (66, 2443660), (88, 1832745), (110, 1466196), (120, 1344013), (122, 1321980), (132, 1221830), (165, 977464), (183, 881320), (220, 733098), (244, 660990), (264, 610915), (305, 528792), (330, 488732), (366, 440660), (440, 366549), (488, 330495), (610, 264396), (660, 244366), (671, 240360), (732, 220330), (915, 176264), (1220, 132198), (1320, 122183), (1342, 120180), (1464, 110165), (1830, 88132), (2003, 80520), (2013, 80120), (2440, 66099), (2684, 60090), (3355, 48072), (3660, 44066), (4006, 40260), (4026, 40060), (5368, 30045), (6009, 26840), (6710, 24036), (7320, 22033), (8012, 20130), (8052, 20030), (10015, 16104), (10065, 16024), (12018, 13420)]