About the Number

129986720

129986719 ← → 129986721

2進数表記:111101111110111000010100000

漢数字表記:一億二千九百九十八万六千七百二十

素因数分解:

2 5 × 5 1 × 31 1 × 73 1 × 359 1

素因数の和:478
約数の個数: 96
約数和(自身を含む): 322237440
約数和(自身を除く): 192250720

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 73, 80, 124, 146, 155, 160, 248, 292, 310, 359, 365, 496, 584, 620, 718, 730, 992, 1168, 1240, 1436, 1460, 1795, 2263, 2336, 2480, 2872, 2920, 3590, 4526, 4960, 5744, 5840, 7180, 9052, 11129, 11315, 11488, 11680, 14360, 18104, 22258, 22630, 26207, 28720, 36208, 44516, 45260, 52414, 55645, 57440, 72416, 89032, 90520, 104828, 111290, 131035, 178064, 181040, 209656, 222580, 262070, 356128, 362080, 419312, 445160, 524140, 812417, 838624, 890320, 1048280, 1624834, 1780640, 2096560, 3249668, 4062085, 4193120, 6499336, 8124170, 12998672, 16248340, 25997344, 32496680, 64993360, 129986720]

約数ペア:
[(1, 129986720), (2, 64993360), (4, 32496680), (5, 25997344), (8, 16248340), (10, 12998672), (16, 8124170), (20, 6499336), (31, 4193120), (32, 4062085), (40, 3249668), (62, 2096560), (73, 1780640), (80, 1624834), (124, 1048280), (146, 890320), (155, 838624), (160, 812417), (248, 524140), (292, 445160), (310, 419312), (359, 362080), (365, 356128), (496, 262070), (584, 222580), (620, 209656), (718, 181040), (730, 178064), (992, 131035), (1168, 111290), (1240, 104828), (1436, 90520), (1460, 89032), (1795, 72416), (2263, 57440), (2336, 55645), (2480, 52414), (2872, 45260), (2920, 44516), (3590, 36208), (4526, 28720), (4960, 26207), (5744, 22630), (5840, 22258), (7180, 18104), (9052, 14360), (11129, 11680), (11315, 11488)]

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