81197970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 128

約数和(自身を含む): 235008000

約数和(自身を除く): 153810030

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 58, 67, 70, 87, 105, 134, 145, 174, 199, 201, 203, 210, 290, 335, 398, 402, 406, 435, 469, 597, 609, 670, 870, 938, 995, 1005, 1015, 1194, 1218, 1393, 1407, 1943, 1990, 2010, 2030, 2345, 2786, 2814, 2985, 3045, 3886, 4179, 4690, 5771, 5829, 5970, 6090, 6965, 7035, 8358, 9715, 11542, 11658, 13333, 13601, 13930, 14070, 17313, 19430, 20895, 26666, 27202, 28855, 29145, 34626, 39999, 40397, 40803, 41790, 57710, 58290, 66665, 68005, 79998, 80794, 81606, 86565, 93331, 121191, 133330, 136010, 173130, 186662, 199995, 201985, 204015, 242382, 279993, 386657, 399990, 403970, 408030, 466655, 559986, 605955, 773314, 933310, 1159971, 1211910, 1399965, 1933285, 2319942, 2706599, 2799930, 3866570, 5413198, 5799855, 8119797, 11599710, 13532995, 16239594, 27065990, 40598985, 81197970]

約数ペア:

[(1, 81197970), (2, 40598985), (3, 27065990), (5, 16239594), (6, 13532995), (7, 11599710), (10, 8119797), (14, 5799855), (15, 5413198), (21, 3866570), (29, 2799930), (30, 2706599), (35, 2319942), (42, 1933285), (58, 1399965), (67, 1211910), (70, 1159971), (87, 933310), (105, 773314), (134, 605955), (145, 559986), (174, 466655), (199, 408030), (201, 403970), (203, 399990), (210, 386657), (290, 279993), (335, 242382), (398, 204015), (402, 201985), (406, 199995), (435, 186662), (469, 173130), (597, 136010), (609, 133330), (670, 121191), (870, 93331), (938, 86565), (995, 81606), (1005, 80794), (1015, 79998), (1194, 68005), (1218, 66665), (1393, 58290), (1407, 57710), (1943, 41790), (1990, 40803), (2010, 40397), (2030, 39999), (2345, 34626), (2786, 29145), (2814, 28855), (2985, 27202), (3045, 26666), (3886, 20895), (4179, 19430), (4690, 17313), (5771, 14070), (5829, 13930), (5970, 13601), (6090, 13333), (6965, 11658), (7035, 11542), (8358, 9715)]