About the Number

308906320

308906319 ← → 308906321

2進数表記:10010011010011000100101010000

漢数字表記:三億八百九十万六千三百二十

素因数分解:

2 4 × 5 1 × 17 2 × 31 1 × 431 1

素因数の和:509
約数の個数: 120
約数和(自身を含む): 789378048
約数和(自身を除く): 480471728

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 289, 310, 340, 431, 496, 527, 578, 620, 680, 862, 1054, 1156, 1240, 1360, 1445, 1724, 2108, 2155, 2312, 2480, 2635, 2890, 3448, 4216, 4310, 4624, 5270, 5780, 6896, 7327, 8432, 8620, 8959, 10540, 11560, 13361, 14654, 17240, 17918, 21080, 23120, 26722, 29308, 34480, 35836, 36635, 42160, 44795, 53444, 58616, 66805, 71672, 73270, 89590, 106888, 117232, 124559, 133610, 143344, 146540, 179180, 213776, 227137, 249118, 267220, 293080, 358360, 454274, 498236, 534440, 586160, 622795, 716720, 908548, 996472, 1068880, 1135685, 1245590, 1817096, 1992944, 2271370, 2491180, 3634192, 3861329, 4542740, 4982360, 7722658, 9085480, 9964720, 15445316, 18170960, 19306645, 30890632, 38613290, 61781264, 77226580, 154453160, 308906320]

約数ペア:
[(1, 308906320), (2, 154453160), (4, 77226580), (5, 61781264), (8, 38613290), (10, 30890632), (16, 19306645), (17, 18170960), (20, 15445316), (31, 9964720), (34, 9085480), (40, 7722658), (62, 4982360), (68, 4542740), (80, 3861329), (85, 3634192), (124, 2491180), (136, 2271370), (155, 1992944), (170, 1817096), (248, 1245590), (272, 1135685), (289, 1068880), (310, 996472), (340, 908548), (431, 716720), (496, 622795), (527, 586160), (578, 534440), (620, 498236), (680, 454274), (862, 358360), (1054, 293080), (1156, 267220), (1240, 249118), (1360, 227137), (1445, 213776), (1724, 179180), (2108, 146540), (2155, 143344), (2312, 133610), (2480, 124559), (2635, 117232), (2890, 106888), (3448, 89590), (4216, 73270), (4310, 71672), (4624, 66805), (5270, 58616), (5780, 53444), (6896, 44795), (7327, 42160), (8432, 36635), (8620, 35836), (8959, 34480), (10540, 29308), (11560, 26722), (13361, 23120), (14654, 21080), (17240, 17918)]

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