21128645200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131071}}^1$

素因数の和:131133

約数の個数: 120

約数和(自身を含む): 56430166016

約数和(自身を除く): 35301520816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 200, 208, 248, 260, 310, 325, 400, 403, 496, 520, 620, 650, 775, 806, 1040, 1240, 1300, 1550, 1612, 2015, 2480, 2600, 3100, 3224, 4030, 5200, 6200, 6448, 8060, 10075, 12400, 16120, 20150, 32240, 40300, 80600, 131071, 161200, 262142, 524284, 655355, 1048568, 1310710, 1703923, 2097136, 2621420, 3276775, 3407846, 4063201, 5242840, 6553550, 6815692, 8126402, 8519615, 10485680, 13107100, 13631384, 16252804, 17039230, 20316005, 26214200, 27262768, 32505608, 34078460, 40632010, 42598075, 52428400, 52821613, 65011216, 68156920, 81264020, 85196150, 101580025, 105643226, 136313840, 162528040, 170392300, 203160050, 211286452, 264108065, 325056080, 340784600, 406320100, 422572904, 528216130, 681569200, 812640200, 845145808, 1056432260, 1320540325, 1625280400, 2112864520, 2641080650, 4225729040, 5282161300, 10564322600, 21128645200]

約数ペア:

[(1, 21128645200), (2, 10564322600), (4, 5282161300), (5, 4225729040), (8, 2641080650), (10, 2112864520), (13, 1625280400), (16, 1320540325), (20, 1056432260), (25, 845145808), (26, 812640200), (31, 681569200), (40, 528216130), (50, 422572904), (52, 406320100), (62, 340784600), (65, 325056080), (80, 264108065), (100, 211286452), (104, 203160050), (124, 170392300), (130, 162528040), (155, 136313840), (200, 105643226), (208, 101580025), (248, 85196150), (260, 81264020), (310, 68156920), (325, 65011216), (400, 52821613), (403, 52428400), (496, 42598075), (520, 40632010), (620, 34078460), (650, 32505608), (775, 27262768), (806, 26214200), (1040, 20316005), (1240, 17039230), (1300, 16252804), (1550, 13631384), (1612, 13107100), (2015, 10485680), (2480, 8519615), (2600, 8126402), (3100, 6815692), (3224, 6553550), (4030, 5242840), (5200, 4063201), (6200, 3407846), (6448, 3276775), (8060, 2621420), (10075, 2097136), (12400, 1703923), (16120, 1310710), (20150, 1048568), (32240, 655355), (40300, 524284), (80600, 262142), (131071, 161200)]