216490720

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:788

約数の個数: 96

約数和(自身を含む): 540509760

約数和(自身を除く): 324019040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 89, 92, 115, 160, 178, 184, 230, 356, 368, 445, 460, 661, 712, 736, 890, 920, 1322, 1424, 1780, 1840, 2047, 2644, 2848, 3305, 3560, 3680, 4094, 5288, 6610, 7120, 8188, 10235, 10576, 13220, 14240, 15203, 16376, 20470, 21152, 26440, 30406, 32752, 40940, 52880, 58829, 60812, 65504, 76015, 81880, 105760, 117658, 121624, 152030, 163760, 235316, 243248, 294145, 304060, 327520, 470632, 486496, 588290, 608120, 941264, 1176580, 1216240, 1353067, 1882528, 2353160, 2432480, 2706134, 4706320, 5412268, 6765335, 9412640, 10824536, 13530670, 21649072, 27061340, 43298144, 54122680, 108245360, 216490720]

約数ペア:

[(1, 216490720), (2, 108245360), (4, 54122680), (5, 43298144), (8, 27061340), (10, 21649072), (16, 13530670), (20, 10824536), (23, 9412640), (32, 6765335), (40, 5412268), (46, 4706320), (80, 2706134), (89, 2432480), (92, 2353160), (115, 1882528), (160, 1353067), (178, 1216240), (184, 1176580), (230, 941264), (356, 608120), (368, 588290), (445, 486496), (460, 470632), (661, 327520), (712, 304060), (736, 294145), (890, 243248), (920, 235316), (1322, 163760), (1424, 152030), (1780, 121624), (1840, 117658), (2047, 105760), (2644, 81880), (2848, 76015), (3305, 65504), (3560, 60812), (3680, 58829), (4094, 52880), (5288, 40940), (6610, 32752), (7120, 30406), (8188, 26440), (10235, 21152), (10576, 20470), (13220, 16376), (14240, 15203)]