81004950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:319

約数の個数: 144

約数和(自身を含む): 239265936

約数和(自身を除く): 158260986

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 25, 26, 30, 39, 45, 50, 61, 65, 75, 78, 90, 117, 122, 130, 150, 183, 195, 225, 227, 234, 305, 325, 366, 390, 450, 454, 549, 585, 610, 650, 681, 793, 915, 975, 1098, 1135, 1170, 1362, 1525, 1586, 1830, 1950, 2043, 2270, 2379, 2745, 2925, 2951, 3050, 3405, 3965, 4086, 4575, 4758, 5490, 5675, 5850, 5902, 6810, 7137, 7930, 8853, 9150, 10215, 11350, 11895, 13725, 13847, 14274, 14755, 17025, 17706, 19825, 20430, 23790, 26559, 27450, 27694, 29510, 34050, 35685, 39650, 41541, 44265, 51075, 53118, 59475, 69235, 71370, 73775, 83082, 88530, 102150, 118950, 124623, 132795, 138470, 147550, 178425, 180011, 207705, 221325, 249246, 265590, 346175, 356850, 360022, 415410, 442650, 540033, 623115, 663975, 692350, 900055, 1038525, 1080066, 1246230, 1327950, 1620099, 1800110, 2077050, 2700165, 3115575, 3240198, 4500275, 5400330, 6231150, 8100495, 9000550, 13500825, 16200990, 27001650, 40502475, 81004950]

約数ペア:

[(1, 81004950), (2, 40502475), (3, 27001650), (5, 16200990), (6, 13500825), (9, 9000550), (10, 8100495), (13, 6231150), (15, 5400330), (18, 4500275), (25, 3240198), (26, 3115575), (30, 2700165), (39, 2077050), (45, 1800110), (50, 1620099), (61, 1327950), (65, 1246230), (75, 1080066), (78, 1038525), (90, 900055), (117, 692350), (122, 663975), (130, 623115), (150, 540033), (183, 442650), (195, 415410), (225, 360022), (227, 356850), (234, 346175), (305, 265590), (325, 249246), (366, 221325), (390, 207705), (450, 180011), (454, 178425), (549, 147550), (585, 138470), (610, 132795), (650, 124623), (681, 118950), (793, 102150), (915, 88530), (975, 83082), (1098, 73775), (1135, 71370), (1170, 69235), (1362, 59475), (1525, 53118), (1586, 51075), (1830, 44265), (1950, 41541), (2043, 39650), (2270, 35685), (2379, 34050), (2745, 29510), (2925, 27694), (2951, 27450), (3050, 26559), (3405, 23790), (3965, 20430), (4086, 19825), (4575, 17706), (4758, 17025), (5490, 14755), (5675, 14274), (5850, 13847), (5902, 13725), (6810, 11895), (7137, 11350), (7930, 10215), (8853, 9150)]