88000020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1$

素因数の和:996

約数の個数: 144

約数和(自身を含む): 291695040

約数和(自身を除く): 203695020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 243, 270, 285, 324, 342, 380, 405, 486, 513, 540, 570, 684, 810, 855, 953, 972, 1026, 1140, 1215, 1539, 1620, 1710, 1906, 2052, 2430, 2565, 2859, 3078, 3420, 3812, 4617, 4765, 4860, 5130, 5718, 6156, 7695, 8577, 9234, 9530, 10260, 11436, 14295, 15390, 17154, 18107, 18468, 19060, 23085, 25731, 28590, 30780, 34308, 36214, 42885, 46170, 51462, 54321, 57180, 72428, 77193, 85770, 90535, 92340, 102924, 108642, 128655, 154386, 162963, 171540, 181070, 217284, 231579, 257310, 271605, 308772, 325926, 362140, 385965, 463158, 488889, 514620, 543210, 651852, 771930, 814815, 926316, 977778, 1086420, 1157895, 1466667, 1543860, 1629630, 1955556, 2315790, 2444445, 2933334, 3259260, 4400001, 4631580, 4888890, 5866668, 7333335, 8800002, 9777780, 14666670, 17600004, 22000005, 29333340, 44000010, 88000020]

約数ペア:

[(1, 88000020), (2, 44000010), (3, 29333340), (4, 22000005), (5, 17600004), (6, 14666670), (9, 9777780), (10, 8800002), (12, 7333335), (15, 5866668), (18, 4888890), (19, 4631580), (20, 4400001), (27, 3259260), (30, 2933334), (36, 2444445), (38, 2315790), (45, 1955556), (54, 1629630), (57, 1543860), (60, 1466667), (76, 1157895), (81, 1086420), (90, 977778), (95, 926316), (108, 814815), (114, 771930), (135, 651852), (162, 543210), (171, 514620), (180, 488889), (190, 463158), (228, 385965), (243, 362140), (270, 325926), (285, 308772), (324, 271605), (342, 257310), (380, 231579), (405, 217284), (486, 181070), (513, 171540), (540, 162963), (570, 154386), (684, 128655), (810, 108642), (855, 102924), (953, 92340), (972, 90535), (1026, 85770), (1140, 77193), (1215, 72428), (1539, 57180), (1620, 54321), (1710, 51462), (1906, 46170), (2052, 42885), (2430, 36214), (2565, 34308), (2859, 30780), (3078, 28590), (3420, 25731), (3812, 23085), (4617, 19060), (4765, 18468), (4860, 18107), (5130, 17154), (5718, 15390), (6156, 14295), (7695, 11436), (8577, 10260), (9234, 9530)]