About the Number

128007012

128007011 ← → 128007013

2進数表記:111101000010011101101100100

漢数字表記:一億二千八百万七千十二

素因数分解:

2 2 × 3 1 × 7 2 × 293 1 × 743 1

素因数の和:1057
約数の個数: 72
約数和(自身を含む): 349102656
約数和(自身を除く): 221095644

約数列:
[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 293, 294, 586, 588, 743, 879, 1172, 1486, 1758, 2051, 2229, 2972, 3516, 4102, 4458, 5201, 6153, 8204, 8916, 10402, 12306, 14357, 15603, 20804, 24612, 28714, 31206, 36407, 43071, 57428, 62412, 72814, 86142, 109221, 145628, 172284, 217699, 218442, 435398, 436884, 653097, 870796, 1306194, 1523893, 2612388, 3047786, 4571679, 6095572, 9143358, 10667251, 18286716, 21334502, 32001753, 42669004, 64003506, 128007012]

約数ペア:
[(1, 128007012), (2, 64003506), (3, 42669004), (4, 32001753), (6, 21334502), (7, 18286716), (12, 10667251), (14, 9143358), (21, 6095572), (28, 4571679), (42, 3047786), (49, 2612388), (84, 1523893), (98, 1306194), (147, 870796), (196, 653097), (293, 436884), (294, 435398), (586, 218442), (588, 217699), (743, 172284), (879, 145628), (1172, 109221), (1486, 86142), (1758, 72814), (2051, 62412), (2229, 57428), (2972, 43071), (3516, 36407), (4102, 31206), (4458, 28714), (5201, 24612), (6153, 20804), (8204, 15603), (8916, 14357), (10402, 12306)]

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