663597040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:531

約数の個数: 160

約数和(自身を含む): 1751941440

約数和(自身を除く): 1088344400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 61, 68, 76, 80, 85, 95, 122, 136, 152, 170, 190, 244, 272, 304, 305, 323, 340, 380, 421, 488, 610, 646, 680, 760, 842, 976, 1037, 1159, 1220, 1292, 1360, 1520, 1615, 1684, 2074, 2105, 2318, 2440, 2584, 3230, 3368, 4148, 4210, 4636, 4880, 5168, 5185, 5795, 6460, 6736, 7157, 7999, 8296, 8420, 9272, 10370, 11590, 12920, 14314, 15998, 16592, 16840, 18544, 19703, 20740, 23180, 25681, 25840, 28628, 31996, 33680, 35785, 39406, 39995, 41480, 46360, 51362, 57256, 63992, 71570, 78812, 79990, 82960, 92720, 98515, 102724, 114512, 127984, 128405, 135983, 143140, 157624, 159980, 197030, 205448, 256810, 271966, 286280, 315248, 319960, 394060, 410896, 436577, 487939, 513620, 543932, 572560, 639920, 679915, 788120, 873154, 975878, 1027240, 1087864, 1359830, 1576240, 1746308, 1951756, 2054480, 2175728, 2182885, 2439695, 2719660, 3492616, 3903512, 4365770, 4879390, 5439320, 6985232, 7807024, 8294963, 8731540, 9758780, 10878640, 16589926, 17463080, 19517560, 33179852, 34926160, 39035120, 41474815, 66359704, 82949630, 132719408, 165899260, 331798520, 663597040]

約数ペア:

[(1, 663597040), (2, 331798520), (4, 165899260), (5, 132719408), (8, 82949630), (10, 66359704), (16, 41474815), (17, 39035120), (19, 34926160), (20, 33179852), (34, 19517560), (38, 17463080), (40, 16589926), (61, 10878640), (68, 9758780), (76, 8731540), (80, 8294963), (85, 7807024), (95, 6985232), (122, 5439320), (136, 4879390), (152, 4365770), (170, 3903512), (190, 3492616), (244, 2719660), (272, 2439695), (304, 2182885), (305, 2175728), (323, 2054480), (340, 1951756), (380, 1746308), (421, 1576240), (488, 1359830), (610, 1087864), (646, 1027240), (680, 975878), (760, 873154), (842, 788120), (976, 679915), (1037, 639920), (1159, 572560), (1220, 543932), (1292, 513620), (1360, 487939), (1520, 436577), (1615, 410896), (1684, 394060), (2074, 319960), (2105, 315248), (2318, 286280), (2440, 271966), (2584, 256810), (3230, 205448), (3368, 197030), (4148, 159980), (4210, 157624), (4636, 143140), (4880, 135983), (5168, 128405), (5185, 127984), (5795, 114512), (6460, 102724), (6736, 98515), (7157, 92720), (7999, 82960), (8296, 79990), (8420, 78812), (9272, 71570), (10370, 63992), (11590, 57256), (12920, 51362), (14314, 46360), (15998, 41480), (16592, 39995), (16840, 39406), (18544, 35785), (19703, 33680), (20740, 31996), (23180, 28628), (25681, 25840)]