166561720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 421848000

約数和(自身を除く): 255286280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 59, 61, 65, 89, 104, 118, 122, 130, 178, 236, 244, 260, 295, 305, 356, 445, 472, 488, 520, 590, 610, 712, 767, 793, 890, 1157, 1180, 1220, 1534, 1586, 1780, 2314, 2360, 2440, 3068, 3172, 3560, 3599, 3835, 3965, 4628, 5251, 5429, 5785, 6136, 6344, 7198, 7670, 7930, 9256, 10502, 10858, 11570, 14396, 15340, 15860, 17995, 21004, 21716, 23140, 26255, 27145, 28792, 30680, 31720, 35990, 42008, 43432, 46280, 46787, 52510, 54290, 68263, 70577, 71980, 93574, 105020, 108580, 136526, 141154, 143960, 187148, 210040, 217160, 233935, 273052, 282308, 320311, 341315, 352885, 374296, 467870, 546104, 564616, 640622, 682630, 705770, 935740, 1281244, 1365260, 1411540, 1601555, 1871480, 2562488, 2730520, 2823080, 3203110, 4164043, 6406220, 8328086, 12812440, 16656172, 20820215, 33312344, 41640430, 83280860, 166561720]

約数ペア:

[(1, 166561720), (2, 83280860), (4, 41640430), (5, 33312344), (8, 20820215), (10, 16656172), (13, 12812440), (20, 8328086), (26, 6406220), (40, 4164043), (52, 3203110), (59, 2823080), (61, 2730520), (65, 2562488), (89, 1871480), (104, 1601555), (118, 1411540), (122, 1365260), (130, 1281244), (178, 935740), (236, 705770), (244, 682630), (260, 640622), (295, 564616), (305, 546104), (356, 467870), (445, 374296), (472, 352885), (488, 341315), (520, 320311), (590, 282308), (610, 273052), (712, 233935), (767, 217160), (793, 210040), (890, 187148), (1157, 143960), (1180, 141154), (1220, 136526), (1534, 108580), (1586, 105020), (1780, 93574), (2314, 71980), (2360, 70577), (2440, 68263), (3068, 54290), (3172, 52510), (3560, 46787), (3599, 46280), (3835, 43432), (3965, 42008), (4628, 35990), (5251, 31720), (5429, 30680), (5785, 28792), (6136, 27145), (6344, 26255), (7198, 23140), (7670, 21716), (7930, 21004), (9256, 17995), (10502, 15860), (10858, 15340), (11570, 14396)]