221310120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1861}}^1$

素因数の和:2866

約数の個数: 64

約数和(自身を含む): 664957440

約数和(自身を除く): 443647320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 991, 1861, 1982, 2973, 3722, 3964, 4955, 5583, 5946, 7444, 7928, 9305, 9910, 11166, 11892, 14865, 14888, 18610, 19820, 22332, 23784, 27915, 29730, 37220, 39640, 44664, 55830, 59460, 74440, 111660, 118920, 223320, 1844251, 3688502, 5532753, 7377004, 9221255, 11065506, 14754008, 18442510, 22131012, 27663765, 36885020, 44262024, 55327530, 73770040, 110655060, 221310120]

約数ペア:

[(1, 221310120), (2, 110655060), (3, 73770040), (4, 55327530), (5, 44262024), (6, 36885020), (8, 27663765), (10, 22131012), (12, 18442510), (15, 14754008), (20, 11065506), (24, 9221255), (30, 7377004), (40, 5532753), (60, 3688502), (120, 1844251), (991, 223320), (1861, 118920), (1982, 111660), (2973, 74440), (3722, 59460), (3964, 55830), (4955, 44664), (5583, 39640), (5946, 37220), (7444, 29730), (7928, 27915), (9305, 23784), (9910, 22332), (11166, 19820), (11892, 18610), (14865, 14888)]