1811285980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{59621}}^1$

素因数の和:59675

約数の個数: 72

約数和(自身を含む): 4567522176

約数和(自身を除く): 2756236196

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, 490, 620, 868, 980, 1085, 1519, 2170, 3038, 4340, 6076, 7595, 15190, 30380, 59621, 119242, 238484, 298105, 417347, 596210, 834694, 1192420, 1669388, 1848251, 2086735, 2921429, 3696502, 4173470, 5842858, 7393004, 8346940, 9241255, 11685716, 12937757, 14607145, 18482510, 25875514, 29214290, 36965020, 51751028, 58428580, 64688785, 90564299, 129377570, 181128598, 258755140, 362257196, 452821495, 905642990, 1811285980]

約数ペア:

[(1, 1811285980), (2, 905642990), (4, 452821495), (5, 362257196), (7, 258755140), (10, 181128598), (14, 129377570), (20, 90564299), (28, 64688785), (31, 58428580), (35, 51751028), (49, 36965020), (62, 29214290), (70, 25875514), (98, 18482510), (124, 14607145), (140, 12937757), (155, 11685716), (196, 9241255), (217, 8346940), (245, 7393004), (310, 5842858), (434, 4173470), (490, 3696502), (620, 2921429), (868, 2086735), (980, 1848251), (1085, 1669388), (1519, 1192420), (2170, 834694), (3038, 596210), (4340, 417347), (6076, 298105), (7595, 238484), (15190, 119242), (30380, 59621)]