13640620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{449}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 34473600

約数和(自身を除く): 20832980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 449, 490, 620, 868, 898, 980, 1085, 1519, 1796, 2170, 2245, 3038, 3143, 4340, 4490, 6076, 6286, 7595, 8980, 12572, 13919, 15190, 15715, 22001, 27838, 30380, 31430, 44002, 55676, 62860, 69595, 88004, 97433, 110005, 139190, 194866, 220010, 278380, 389732, 440020, 487165, 682031, 974330, 1364062, 1948660, 2728124, 3410155, 6820310, 13640620]

約数ペア:

[(1, 13640620), (2, 6820310), (4, 3410155), (5, 2728124), (7, 1948660), (10, 1364062), (14, 974330), (20, 682031), (28, 487165), (31, 440020), (35, 389732), (49, 278380), (62, 220010), (70, 194866), (98, 139190), (124, 110005), (140, 97433), (155, 88004), (196, 69595), (217, 62860), (245, 55676), (310, 44002), (434, 31430), (449, 30380), (490, 27838), (620, 22001), (868, 15715), (898, 15190), (980, 13919), (1085, 12572), (1519, 8980), (1796, 7595), (2170, 6286), (2245, 6076), (3038, 4490), (3143, 4340)]