78007020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:209

約数の個数: 216

約数和(自身を含む): 276880464

約数和(自身を除く): 198873444

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 157, 169, 182, 195, 196, 210, 245, 260, 273, 294, 314, 338, 364, 390, 420, 455, 471, 490, 507, 546, 588, 628, 637, 676, 735, 780, 785, 845, 910, 942, 980, 1014, 1092, 1099, 1183, 1274, 1365, 1470, 1570, 1690, 1820, 1884, 1911, 2028, 2041, 2198, 2355, 2366, 2535, 2548, 2730, 2940, 3140, 3185, 3297, 3380, 3549, 3822, 4082, 4396, 4710, 4732, 5070, 5460, 5495, 5915, 6123, 6370, 6594, 7098, 7644, 7693, 8164, 8281, 9420, 9555, 10140, 10205, 10990, 11830, 12246, 12740, 13188, 14196, 14287, 15386, 16485, 16562, 17745, 19110, 20410, 21980, 23079, 23660, 24492, 24843, 26533, 28574, 30615, 30772, 32970, 33124, 35490, 38220, 38465, 40820, 41405, 42861, 46158, 49686, 53066, 57148, 61230, 65940, 70980, 71435, 76930, 79599, 82810, 85722, 92316, 99372, 100009, 106132, 115395, 122460, 124215, 132665, 142870, 153860, 159198, 165620, 171444, 185731, 200018, 214305, 230790, 248430, 265330, 285740, 300027, 318396, 371462, 397995, 400036, 428610, 461580, 496860, 500045, 530660, 557193, 600054, 742924, 795990, 857220, 928655, 1000090, 1114386, 1200108, 1300117, 1500135, 1591980, 1857310, 2000180, 2228772, 2600234, 2785965, 3000270, 3714620, 3900351, 5200468, 5571930, 6000540, 6500585, 7800702, 11143860, 13001170, 15601404, 19501755, 26002340, 39003510, 78007020]

約数ペア:

[(1, 78007020), (2, 39003510), (3, 26002340), (4, 19501755), (5, 15601404), (6, 13001170), (7, 11143860), (10, 7800702), (12, 6500585), (13, 6000540), (14, 5571930), (15, 5200468), (20, 3900351), (21, 3714620), (26, 3000270), (28, 2785965), (30, 2600234), (35, 2228772), (39, 2000180), (42, 1857310), (49, 1591980), (52, 1500135), (60, 1300117), (65, 1200108), (70, 1114386), (78, 1000090), (84, 928655), (91, 857220), (98, 795990), (105, 742924), (130, 600054), (140, 557193), (147, 530660), (156, 500045), (157, 496860), (169, 461580), (182, 428610), (195, 400036), (196, 397995), (210, 371462), (245, 318396), (260, 300027), (273, 285740), (294, 265330), (314, 248430), (338, 230790), (364, 214305), (390, 200018), (420, 185731), (455, 171444), (471, 165620), (490, 159198), (507, 153860), (546, 142870), (588, 132665), (628, 124215), (637, 122460), (676, 115395), (735, 106132), (780, 100009), (785, 99372), (845, 92316), (910, 85722), (942, 82810), (980, 79599), (1014, 76930), (1092, 71435), (1099, 70980), (1183, 65940), (1274, 61230), (1365, 57148), (1470, 53066), (1570, 49686), (1690, 46158), (1820, 42861), (1884, 41405), (1911, 40820), (2028, 38465), (2041, 38220), (2198, 35490), (2355, 33124), (2366, 32970), (2535, 30772), (2548, 30615), (2730, 28574), (2940, 26533), (3140, 24843), (3185, 24492), (3297, 23660), (3380, 23079), (3549, 21980), (3822, 20410), (4082, 19110), (4396, 17745), (4710, 16562), (4732, 16485), (5070, 15386), (5460, 14287), (5495, 14196), (5915, 13188), (6123, 12740), (6370, 12246), (6594, 11830), (7098, 10990), (7644, 10205), (7693, 10140), (8164, 9555), (8281, 9420)]