19555560

素因数分解:

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

素因数の和:992

約数の個数: 128

約数和(自身を含む): 68688000

約数和(自身を除く): 49132440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 953, 1026, 1080, 1140, 1368, 1710, 1906, 2052, 2280, 2565, 2859, 3420, 3812, 4104, 4765, 5130, 5718, 6840, 7624, 8577, 9530, 10260, 11436, 14295, 17154, 18107, 19060, 20520, 22872, 25731, 28590, 34308, 36214, 38120, 42885, 51462, 54321, 57180, 68616, 72428, 85770, 90535, 102924, 108642, 114360, 128655, 144856, 162963, 171540, 181070, 205848, 217284, 257310, 271605, 325926, 343080, 362140, 434568, 488889, 514620, 543210, 651852, 724280, 814815, 977778, 1029240, 1086420, 1303704, 1629630, 1955556, 2172840, 2444445, 3259260, 3911112, 4888890, 6518520, 9777780, 19555560]

約数ペア:

[(1, 19555560), (2, 9777780), (3, 6518520), (4, 4888890), (5, 3911112), (6, 3259260), (8, 2444445), (9, 2172840), (10, 1955556), (12, 1629630), (15, 1303704), (18, 1086420), (19, 1029240), (20, 977778), (24, 814815), (27, 724280), (30, 651852), (36, 543210), (38, 514620), (40, 488889), (45, 434568), (54, 362140), (57, 343080), (60, 325926), (72, 271605), (76, 257310), (90, 217284), (95, 205848), (108, 181070), (114, 171540), (120, 162963), (135, 144856), (152, 128655), (171, 114360), (180, 108642), (190, 102924), (216, 90535), (228, 85770), (270, 72428), (285, 68616), (342, 57180), (360, 54321), (380, 51462), (456, 42885), (513, 38120), (540, 36214), (570, 34308), (684, 28590), (760, 25731), (855, 22872), (953, 20520), (1026, 19060), (1080, 18107), (1140, 17154), (1368, 14295), (1710, 11436), (1906, 10260), (2052, 9530), (2280, 8577), (2565, 7624), (2859, 6840), (3420, 5718), (3812, 5130), (4104, 4765)]