About the Number

1288390140

1288390139 ← → 1288390141

2進数表記:1001100110010110100010111111100

漢数字表記:十二億八千八百三十九万百四十

素因数分解:

2 2 × 3 2 × 5 1 × 71 1 × 73 1 × 1381 1

素因数の和:1540
約数の個数: 144
約数和(自身を含む): 4020359616
約数和(自身を除く): 2731969476

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 73, 90, 142, 146, 180, 213, 219, 284, 292, 355, 365, 426, 438, 639, 657, 710, 730, 852, 876, 1065, 1095, 1278, 1314, 1381, 1420, 1460, 2130, 2190, 2556, 2628, 2762, 3195, 3285, 4143, 4260, 4380, 5183, 5524, 6390, 6570, 6905, 8286, 10366, 12429, 12780, 13140, 13810, 15549, 16572, 20715, 20732, 24858, 25915, 27620, 31098, 41430, 46647, 49716, 51830, 62145, 62196, 77745, 82860, 93294, 98051, 100813, 103660, 124290, 155490, 186588, 196102, 201626, 233235, 248580, 294153, 302439, 310980, 392204, 403252, 466470, 490255, 504065, 588306, 604878, 882459, 907317, 932940, 980510, 1008130, 1176612, 1209756, 1470765, 1512195, 1764918, 1814634, 1961020, 2016260, 2941530, 3024390, 3529836, 3629268, 4412295, 4536585, 5883060, 6048780, 7157723, 8824590, 9073170, 14315446, 17649180, 18146340, 21473169, 28630892, 35788615, 42946338, 64419507, 71577230, 85892676, 107365845, 128839014, 143154460, 214731690, 257678028, 322097535, 429463380, 644195070, 1288390140]

約数ペア:
[(1, 1288390140), (2, 644195070), (3, 429463380), (4, 322097535), (5, 257678028), (6, 214731690), (9, 143154460), (10, 128839014), (12, 107365845), (15, 85892676), (18, 71577230), (20, 64419507), (30, 42946338), (36, 35788615), (45, 28630892), (60, 21473169), (71, 18146340), (73, 17649180), (90, 14315446), (142, 9073170), (146, 8824590), (180, 7157723), (213, 6048780), (219, 5883060), (284, 4536585), (292, 4412295), (355, 3629268), (365, 3529836), (426, 3024390), (438, 2941530), (639, 2016260), (657, 1961020), (710, 1814634), (730, 1764918), (852, 1512195), (876, 1470765), (1065, 1209756), (1095, 1176612), (1278, 1008130), (1314, 980510), (1381, 932940), (1420, 907317), (1460, 882459), (2130, 604878), (2190, 588306), (2556, 504065), (2628, 490255), (2762, 466470), (3195, 403252), (3285, 392204), (4143, 310980), (4260, 302439), (4380, 294153), (5183, 248580), (5524, 233235), (6390, 201626), (6570, 196102), (6905, 186588), (8286, 155490), (10366, 124290), (12429, 103660), (12780, 100813), (13140, 98051), (13810, 93294), (15549, 82860), (16572, 77745), (20715, 62196), (20732, 62145), (24858, 51830), (25915, 49716), (27620, 46647), (31098, 41430)]

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