281365980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:444

約数の個数: 192

約数和(自身を含む): 963228672

約数和(自身を除く): 681862692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 157, 170, 204, 210, 238, 251, 255, 314, 340, 357, 420, 471, 476, 502, 510, 595, 628, 714, 753, 785, 942, 1004, 1020, 1099, 1190, 1255, 1428, 1506, 1570, 1757, 1785, 1884, 2198, 2355, 2380, 2510, 2669, 3012, 3140, 3297, 3514, 3570, 3765, 4267, 4396, 4710, 5020, 5271, 5338, 5495, 6594, 7028, 7140, 7530, 8007, 8534, 8785, 9420, 10542, 10676, 10990, 12801, 13188, 13345, 15060, 16014, 16485, 17068, 17570, 18683, 21084, 21335, 21980, 25602, 26355, 26690, 29869, 32028, 32970, 35140, 37366, 39407, 40035, 42670, 51204, 52710, 53380, 56049, 59738, 64005, 65940, 74732, 78814, 80070, 85340, 89607, 93415, 105420, 112098, 118221, 119476, 128010, 149345, 157628, 160140, 179214, 186830, 197035, 224196, 236442, 256020, 275849, 280245, 298690, 358428, 373660, 394070, 448035, 472884, 551698, 560490, 591105, 597380, 669919, 788140, 827547, 896070, 1103396, 1120980, 1182210, 1339838, 1379245, 1655094, 1792140, 2009757, 2364420, 2679676, 2758490, 3310188, 3349595, 4019514, 4137735, 4689433, 5516980, 6699190, 8039028, 8275470, 9378866, 10048785, 13398380, 14068299, 16550940, 18757732, 20097570, 23447165, 28136598, 40195140, 46894330, 56273196, 70341495, 93788660, 140682990, 281365980]

約数ペア:

[(1, 281365980), (2, 140682990), (3, 93788660), (4, 70341495), (5, 56273196), (6, 46894330), (7, 40195140), (10, 28136598), (12, 23447165), (14, 20097570), (15, 18757732), (17, 16550940), (20, 14068299), (21, 13398380), (28, 10048785), (30, 9378866), (34, 8275470), (35, 8039028), (42, 6699190), (51, 5516980), (60, 4689433), (68, 4137735), (70, 4019514), (84, 3349595), (85, 3310188), (102, 2758490), (105, 2679676), (119, 2364420), (140, 2009757), (157, 1792140), (170, 1655094), (204, 1379245), (210, 1339838), (238, 1182210), (251, 1120980), (255, 1103396), (314, 896070), (340, 827547), (357, 788140), (420, 669919), (471, 597380), (476, 591105), (502, 560490), (510, 551698), (595, 472884), (628, 448035), (714, 394070), (753, 373660), (785, 358428), (942, 298690), (1004, 280245), (1020, 275849), (1099, 256020), (1190, 236442), (1255, 224196), (1428, 197035), (1506, 186830), (1570, 179214), (1757, 160140), (1785, 157628), (1884, 149345), (2198, 128010), (2355, 119476), (2380, 118221), (2510, 112098), (2669, 105420), (3012, 93415), (3140, 89607), (3297, 85340), (3514, 80070), (3570, 78814), (3765, 74732), (4267, 65940), (4396, 64005), (4710, 59738), (5020, 56049), (5271, 53380), (5338, 52710), (5495, 51204), (6594, 42670), (7028, 40035), (7140, 39407), (7530, 37366), (8007, 35140), (8534, 32970), (8785, 32028), (9420, 29869), (10542, 26690), (10676, 26355), (10990, 25602), (12801, 21980), (13188, 21335), (13345, 21084), (15060, 18683), (16014, 17570), (16485, 17068)]