211268720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6553}}^1$

素因数の和:6610

約数の個数: 80

約数和(自身を含む): 546131712

約数和(自身を除く): 334862992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 6553, 8060, 13106, 16120, 26212, 32240, 32765, 52424, 65530, 85189, 104848, 131060, 170378, 203143, 262120, 340756, 406286, 425945, 524240, 681512, 812572, 851890, 1015715, 1363024, 1625144, 1703780, 2031430, 2640859, 3250288, 3407560, 4062860, 5281718, 6815120, 8125720, 10563436, 13204295, 16251440, 21126872, 26408590, 42253744, 52817180, 105634360, 211268720]

約数ペア:

[(1, 211268720), (2, 105634360), (4, 52817180), (5, 42253744), (8, 26408590), (10, 21126872), (13, 16251440), (16, 13204295), (20, 10563436), (26, 8125720), (31, 6815120), (40, 5281718), (52, 4062860), (62, 3407560), (65, 3250288), (80, 2640859), (104, 2031430), (124, 1703780), (130, 1625144), (155, 1363024), (208, 1015715), (248, 851890), (260, 812572), (310, 681512), (403, 524240), (496, 425945), (520, 406286), (620, 340756), (806, 262120), (1040, 203143), (1240, 170378), (1612, 131060), (2015, 104848), (2480, 85189), (3224, 65530), (4030, 52424), (6448, 32765), (6553, 32240), (8060, 26212), (13106, 16120)]