247775640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{743}}^1$

素因数の和:1161

約数の個数: 128

約数和(自身を含む): 852802560

約数和(自身を除く): 605026920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 397, 420, 743, 794, 840, 1191, 1486, 1588, 1985, 2229, 2382, 2779, 2972, 3176, 3715, 3970, 4458, 4764, 5201, 5558, 5944, 5955, 7430, 7940, 8337, 8916, 9528, 10402, 11116, 11145, 11910, 13895, 14860, 15603, 15880, 16674, 17832, 20804, 22232, 22290, 23820, 26005, 27790, 29720, 31206, 33348, 41608, 41685, 44580, 47640, 52010, 55580, 62412, 66696, 78015, 83370, 89160, 104020, 111160, 124824, 156030, 166740, 208040, 294971, 312060, 333480, 589942, 624120, 884913, 1179884, 1474855, 1769826, 2064797, 2359768, 2949710, 3539652, 4129594, 4424565, 5899420, 6194391, 7079304, 8259188, 8849130, 10323985, 11798840, 12388782, 16518376, 17698260, 20647970, 24777564, 30971955, 35396520, 41295940, 49555128, 61943910, 82591880, 123887820, 247775640]

約数ペア:

[(1, 247775640), (2, 123887820), (3, 82591880), (4, 61943910), (5, 49555128), (6, 41295940), (7, 35396520), (8, 30971955), (10, 24777564), (12, 20647970), (14, 17698260), (15, 16518376), (20, 12388782), (21, 11798840), (24, 10323985), (28, 8849130), (30, 8259188), (35, 7079304), (40, 6194391), (42, 5899420), (56, 4424565), (60, 4129594), (70, 3539652), (84, 2949710), (105, 2359768), (120, 2064797), (140, 1769826), (168, 1474855), (210, 1179884), (280, 884913), (397, 624120), (420, 589942), (743, 333480), (794, 312060), (840, 294971), (1191, 208040), (1486, 166740), (1588, 156030), (1985, 124824), (2229, 111160), (2382, 104020), (2779, 89160), (2972, 83370), (3176, 78015), (3715, 66696), (3970, 62412), (4458, 55580), (4764, 52010), (5201, 47640), (5558, 44580), (5944, 41685), (5955, 41608), (7430, 33348), (7940, 31206), (8337, 29720), (8916, 27790), (9528, 26005), (10402, 23820), (11116, 22290), (11145, 22232), (11910, 20804), (13895, 17832), (14860, 16674), (15603, 15880)]