About the Number

30984240

30984239 ← → 30984241

2進数表記:1110110001100100000110000

漢数字表記:三千九十八万四千二百四十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 18443 1

素因数の和:18466
約数の個数: 80
約数和(自身を含む): 109778688
約数和(自身を除く): 78794448

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 18443, 36886, 55329, 73772, 92215, 110658, 129101, 147544, 184430, 221316, 258202, 276645, 295088, 368860, 387303, 442632, 516404, 553290, 645505, 737720, 774606, 885264, 1032808, 1106580, 1291010, 1475440, 1549212, 1936515, 2065616, 2213160, 2582020, 3098424, 3873030, 4426320, 5164040, 6196848, 7746060, 10328080, 15492120, 30984240]

約数ペア:
[(1, 30984240), (2, 15492120), (3, 10328080), (4, 7746060), (5, 6196848), (6, 5164040), (7, 4426320), (8, 3873030), (10, 3098424), (12, 2582020), (14, 2213160), (15, 2065616), (16, 1936515), (20, 1549212), (21, 1475440), (24, 1291010), (28, 1106580), (30, 1032808), (35, 885264), (40, 774606), (42, 737720), (48, 645505), (56, 553290), (60, 516404), (70, 442632), (80, 387303), (84, 368860), (105, 295088), (112, 276645), (120, 258202), (140, 221316), (168, 184430), (210, 147544), (240, 129101), (280, 110658), (336, 92215), (420, 73772), (560, 55329), (840, 36886), (1680, 18443)]

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