28403460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:307

約数の個数: 120

約数和(自身を含む): 90561240

約数和(自身を除く): 62157780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 162, 178, 180, 197, 267, 270, 324, 356, 394, 405, 445, 534, 540, 591, 788, 801, 810, 890, 985, 1068, 1182, 1335, 1602, 1620, 1773, 1780, 1970, 2364, 2403, 2670, 2955, 3204, 3546, 3940, 4005, 4806, 5319, 5340, 5910, 7092, 7209, 8010, 8865, 9612, 10638, 11820, 12015, 14418, 15957, 16020, 17533, 17730, 21276, 24030, 26595, 28836, 31914, 35066, 35460, 36045, 48060, 52599, 53190, 63828, 70132, 72090, 79785, 87665, 105198, 106380, 144180, 157797, 159570, 175330, 210396, 262995, 315594, 319140, 350660, 473391, 525990, 631188, 788985, 946782, 1051980, 1420173, 1577970, 1893564, 2366955, 2840346, 3155940, 4733910, 5680692, 7100865, 9467820, 14201730, 28403460]

約数ペア:

[(1, 28403460), (2, 14201730), (3, 9467820), (4, 7100865), (5, 5680692), (6, 4733910), (9, 3155940), (10, 2840346), (12, 2366955), (15, 1893564), (18, 1577970), (20, 1420173), (27, 1051980), (30, 946782), (36, 788985), (45, 631188), (54, 525990), (60, 473391), (81, 350660), (89, 319140), (90, 315594), (108, 262995), (135, 210396), (162, 175330), (178, 159570), (180, 157797), (197, 144180), (267, 106380), (270, 105198), (324, 87665), (356, 79785), (394, 72090), (405, 70132), (445, 63828), (534, 53190), (540, 52599), (591, 48060), (788, 36045), (801, 35460), (810, 35066), (890, 31914), (985, 28836), (1068, 26595), (1182, 24030), (1335, 21276), (1602, 17730), (1620, 17533), (1773, 16020), (1780, 15957), (1970, 14418), (2364, 12015), (2403, 11820), (2670, 10638), (2955, 9612), (3204, 8865), (3546, 8010), (3940, 7209), (4005, 7092), (4806, 5910), (5319, 5340)]