About the Number

121888980

121888979 ← → 121888981

2進数表記:111010000111110000011010100

漢数字表記:一億二千百八十八万八千九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 17 1 × 61 1 × 653 1

素因数の和:746
約数の個数: 144
約数和(自身を含む): 398505744
約数和(自身を除く): 276616764

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 61, 68, 85, 90, 102, 122, 153, 170, 180, 183, 204, 244, 255, 305, 306, 340, 366, 510, 549, 610, 612, 653, 732, 765, 915, 1020, 1037, 1098, 1220, 1306, 1530, 1830, 1959, 2074, 2196, 2612, 2745, 3060, 3111, 3265, 3660, 3918, 4148, 5185, 5490, 5877, 6222, 6530, 7836, 9333, 9795, 10370, 10980, 11101, 11754, 12444, 13060, 15555, 18666, 19590, 20740, 22202, 23508, 29385, 31110, 33303, 37332, 39180, 39833, 44404, 46665, 55505, 58770, 62220, 66606, 79666, 93330, 99909, 111010, 117540, 119499, 133212, 159332, 166515, 186660, 199165, 199818, 222020, 238998, 333030, 358497, 398330, 399636, 477996, 499545, 597495, 666060, 677161, 716994, 796660, 999090, 1194990, 1354322, 1433988, 1792485, 1998180, 2031483, 2389980, 2708644, 3385805, 3584970, 4062966, 6094449, 6771610, 7169940, 8125932, 10157415, 12188898, 13543220, 20314830, 24377796, 30472245, 40629660, 60944490, 121888980]

約数ペア:
[(1, 121888980), (2, 60944490), (3, 40629660), (4, 30472245), (5, 24377796), (6, 20314830), (9, 13543220), (10, 12188898), (12, 10157415), (15, 8125932), (17, 7169940), (18, 6771610), (20, 6094449), (30, 4062966), (34, 3584970), (36, 3385805), (45, 2708644), (51, 2389980), (60, 2031483), (61, 1998180), (68, 1792485), (85, 1433988), (90, 1354322), (102, 1194990), (122, 999090), (153, 796660), (170, 716994), (180, 677161), (183, 666060), (204, 597495), (244, 499545), (255, 477996), (305, 399636), (306, 398330), (340, 358497), (366, 333030), (510, 238998), (549, 222020), (610, 199818), (612, 199165), (653, 186660), (732, 166515), (765, 159332), (915, 133212), (1020, 119499), (1037, 117540), (1098, 111010), (1220, 99909), (1306, 93330), (1530, 79666), (1830, 66606), (1959, 62220), (2074, 58770), (2196, 55505), (2612, 46665), (2745, 44404), (3060, 39833), (3111, 39180), (3265, 37332), (3660, 33303), (3918, 31110), (4148, 29385), (5185, 23508), (5490, 22202), (5877, 20740), (6222, 19590), (6530, 18666), (7836, 15555), (9333, 13060), (9795, 12444), (10370, 11754), (10980, 11101)]

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