About the Number

31290720

31290719 ← → 31290721

2進数表記:1110111010111010101100000

漢数字表記:三千百二十九万七百二十

素因数分解:

2 5 × 3 1 × 5 1 × 19 1 × 47 1 × 73 1

素因数の和:157
約数の個数: 192
約数和(自身を含む): 107412480
約数和(自身を除く): 76121760

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 47, 48, 57, 60, 73, 76, 80, 94, 95, 96, 114, 120, 141, 146, 152, 160, 188, 190, 219, 228, 235, 240, 282, 285, 292, 304, 365, 376, 380, 438, 456, 470, 480, 564, 570, 584, 608, 705, 730, 752, 760, 876, 893, 912, 940, 1095, 1128, 1140, 1168, 1387, 1410, 1460, 1504, 1520, 1752, 1786, 1824, 1880, 2190, 2256, 2280, 2336, 2679, 2774, 2820, 2920, 3040, 3431, 3504, 3572, 3760, 4161, 4380, 4465, 4512, 4560, 5358, 5548, 5640, 5840, 6862, 6935, 7008, 7144, 7520, 8322, 8760, 8930, 9120, 10293, 10716, 11096, 11280, 11680, 13395, 13724, 13870, 14288, 16644, 17155, 17520, 17860, 20586, 20805, 21432, 22192, 22560, 26790, 27448, 27740, 28576, 33288, 34310, 35040, 35720, 41172, 41610, 42864, 44384, 51465, 53580, 54896, 55480, 65189, 66576, 68620, 71440, 82344, 83220, 85728, 102930, 107160, 109792, 110960, 130378, 133152, 137240, 142880, 164688, 166440, 195567, 205860, 214320, 221920, 260756, 274480, 325945, 329376, 332880, 391134, 411720, 428640, 521512, 548960, 651890, 665760, 782268, 823440, 977835, 1043024, 1303780, 1564536, 1646880, 1955670, 2086048, 2607560, 3129072, 3911340, 5215120, 6258144, 7822680, 10430240, 15645360, 31290720]

約数ペア:
[(1, 31290720), (2, 15645360), (3, 10430240), (4, 7822680), (5, 6258144), (6, 5215120), (8, 3911340), (10, 3129072), (12, 2607560), (15, 2086048), (16, 1955670), (19, 1646880), (20, 1564536), (24, 1303780), (30, 1043024), (32, 977835), (38, 823440), (40, 782268), (47, 665760), (48, 651890), (57, 548960), (60, 521512), (73, 428640), (76, 411720), (80, 391134), (94, 332880), (95, 329376), (96, 325945), (114, 274480), (120, 260756), (141, 221920), (146, 214320), (152, 205860), (160, 195567), (188, 166440), (190, 164688), (219, 142880), (228, 137240), (235, 133152), (240, 130378), (282, 110960), (285, 109792), (292, 107160), (304, 102930), (365, 85728), (376, 83220), (380, 82344), (438, 71440), (456, 68620), (470, 66576), (480, 65189), (564, 55480), (570, 54896), (584, 53580), (608, 51465), (705, 44384), (730, 42864), (752, 41610), (760, 41172), (876, 35720), (893, 35040), (912, 34310), (940, 33288), (1095, 28576), (1128, 27740), (1140, 27448), (1168, 26790), (1387, 22560), (1410, 22192), (1460, 21432), (1504, 20805), (1520, 20586), (1752, 17860), (1786, 17520), (1824, 17155), (1880, 16644), (2190, 14288), (2256, 13870), (2280, 13724), (2336, 13395), (2679, 11680), (2774, 11280), (2820, 11096), (2920, 10716), (3040, 10293), (3431, 9120), (3504, 8930), (3572, 8760), (3760, 8322), (4161, 7520), (4380, 7144), (4465, 7008), (4512, 6935), (4560, 6862), (5358, 5840), (5548, 5640)]

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