About the Number

155407980

155407979 ← → 155407981

2進数表記:1001010000110101011001101100

漢数字表記:一億五千五百四十万七千九百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 13 1 × 28463 1

素因数の和:28495
約数の個数: 96
約数和(自身を含む): 535578624
約数和(自身を除く): 380170644

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 28463, 56926, 85389, 113852, 142315, 170778, 199241, 284630, 341556, 370019, 398482, 426945, 569260, 597723, 740038, 796964, 853890, 996205, 1110057, 1195446, 1480076, 1707780, 1850095, 1992410, 2220114, 2390892, 2590133, 2988615, 3700190, 3984820, 4440228, 5180266, 5550285, 5977230, 7400380, 7770399, 10360532, 11100570, 11954460, 12950665, 15540798, 22201140, 25901330, 31081596, 38851995, 51802660, 77703990, 155407980]

約数ペア:
[(1, 155407980), (2, 77703990), (3, 51802660), (4, 38851995), (5, 31081596), (6, 25901330), (7, 22201140), (10, 15540798), (12, 12950665), (13, 11954460), (14, 11100570), (15, 10360532), (20, 7770399), (21, 7400380), (26, 5977230), (28, 5550285), (30, 5180266), (35, 4440228), (39, 3984820), (42, 3700190), (52, 2988615), (60, 2590133), (65, 2390892), (70, 2220114), (78, 1992410), (84, 1850095), (91, 1707780), (105, 1480076), (130, 1195446), (140, 1110057), (156, 996205), (182, 853890), (195, 796964), (210, 740038), (260, 597723), (273, 569260), (364, 426945), (390, 398482), (420, 370019), (455, 341556), (546, 284630), (780, 199241), (910, 170778), (1092, 142315), (1365, 113852), (1820, 85389), (2730, 56926), (5460, 28463)]

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