About the Number

221428890

221428889 ← → 221428891

2進数表記:1101001100101011110010011010

漢数字表記:二億二千百四十二万八千八百九十

素因数分解:

2 1 × 3 5 × 5 1 × 293 1 × 311 1

素因数の和:626
約数の個数: 96
約数和(自身を含む): 601001856
約数和(自身を除く): 379572966

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 293, 311, 405, 486, 586, 622, 810, 879, 933, 1215, 1465, 1555, 1758, 1866, 2430, 2637, 2799, 2930, 3110, 4395, 4665, 5274, 5598, 7911, 8397, 8790, 9330, 13185, 13995, 15822, 16794, 23733, 25191, 26370, 27990, 39555, 41985, 47466, 50382, 71199, 75573, 79110, 83970, 91123, 118665, 125955, 142398, 151146, 182246, 237330, 251910, 273369, 355995, 377865, 455615, 546738, 711990, 755730, 820107, 911230, 1366845, 1640214, 2460321, 2733690, 4100535, 4920642, 7380963, 8201070, 12301605, 14761926, 22142889, 24603210, 36904815, 44285778, 73809630, 110714445, 221428890]

約数ペア:
[(1, 221428890), (2, 110714445), (3, 73809630), (5, 44285778), (6, 36904815), (9, 24603210), (10, 22142889), (15, 14761926), (18, 12301605), (27, 8201070), (30, 7380963), (45, 4920642), (54, 4100535), (81, 2733690), (90, 2460321), (135, 1640214), (162, 1366845), (243, 911230), (270, 820107), (293, 755730), (311, 711990), (405, 546738), (486, 455615), (586, 377865), (622, 355995), (810, 273369), (879, 251910), (933, 237330), (1215, 182246), (1465, 151146), (1555, 142398), (1758, 125955), (1866, 118665), (2430, 91123), (2637, 83970), (2799, 79110), (2930, 75573), (3110, 71199), (4395, 50382), (4665, 47466), (5274, 41985), (5598, 39555), (7911, 27990), (8397, 26370), (8790, 25191), (9330, 23733), (13185, 16794), (13995, 15822)]

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