About the Number

40890920

40890919 ← → 40890921

2進数表記:10011011111111001000101000

漢数字表記:四千八十九万九百二十

素因数分解:

2 3 × 5 1 × 7 1 × 37 1 × 3947 1

素因数の和:4002
約数の個数: 64
約数和(自身を含む): 108017280
約数和(自身を除く): 67126360

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 3947, 5180, 7894, 10360, 15788, 19735, 27629, 31576, 39470, 55258, 78940, 110516, 138145, 146039, 157880, 221032, 276290, 292078, 552580, 584156, 730195, 1022273, 1105160, 1168312, 1460390, 2044546, 2920780, 4089092, 5111365, 5841560, 8178184, 10222730, 20445460, 40890920]

約数ペア:
[(1, 40890920), (2, 20445460), (4, 10222730), (5, 8178184), (7, 5841560), (8, 5111365), (10, 4089092), (14, 2920780), (20, 2044546), (28, 1460390), (35, 1168312), (37, 1105160), (40, 1022273), (56, 730195), (70, 584156), (74, 552580), (140, 292078), (148, 276290), (185, 221032), (259, 157880), (280, 146039), (296, 138145), (370, 110516), (518, 78940), (740, 55258), (1036, 39470), (1295, 31576), (1480, 27629), (2072, 19735), (2590, 15788), (3947, 10360), (5180, 7894)]

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