About the Number

155280990

155280989 ← → 155280991

2進数表記:1001010000010110011001011110

漢数字表記:一億五千五百二十八万九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 53 1 × 61 1 × 1601 1

素因数の和:1725
約数の個数: 64
約数和(自身を含む): 386171712
約数和(自身を除く): 230890722

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 53, 61, 106, 122, 159, 183, 265, 305, 318, 366, 530, 610, 795, 915, 1590, 1601, 1830, 3202, 3233, 4803, 6466, 8005, 9606, 9699, 16010, 16165, 19398, 24015, 32330, 48030, 48495, 84853, 96990, 97661, 169706, 195322, 254559, 292983, 424265, 488305, 509118, 585966, 848530, 976610, 1272795, 1464915, 2545590, 2929830, 5176033, 10352066, 15528099, 25880165, 31056198, 51760330, 77640495, 155280990]

約数ペア:
[(1, 155280990), (2, 77640495), (3, 51760330), (5, 31056198), (6, 25880165), (10, 15528099), (15, 10352066), (30, 5176033), (53, 2929830), (61, 2545590), (106, 1464915), (122, 1272795), (159, 976610), (183, 848530), (265, 585966), (305, 509118), (318, 488305), (366, 424265), (530, 292983), (610, 254559), (795, 195322), (915, 169706), (1590, 97661), (1601, 96990), (1830, 84853), (3202, 48495), (3233, 48030), (4803, 32330), (6466, 24015), (8005, 19398), (9606, 16165), (9699, 16010)]

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