81682380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:616

約数の個数: 144

約数和(自身を含む): 271331424

約数和(自身を除く): 189649044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 67, 78, 90, 117, 130, 134, 156, 180, 195, 201, 234, 260, 268, 335, 390, 402, 468, 521, 585, 603, 670, 780, 804, 871, 1005, 1042, 1170, 1206, 1340, 1563, 1742, 2010, 2084, 2340, 2412, 2605, 2613, 3015, 3126, 3484, 4020, 4355, 4689, 5210, 5226, 6030, 6252, 6773, 7815, 7839, 8710, 9378, 10420, 10452, 12060, 13065, 13546, 15630, 15678, 17420, 18756, 20319, 23445, 26130, 27092, 31260, 31356, 33865, 34907, 39195, 40638, 46890, 52260, 60957, 67730, 69814, 78390, 81276, 93780, 101595, 104721, 121914, 135460, 139628, 156780, 174535, 203190, 209442, 243828, 304785, 314163, 349070, 406380, 418884, 453791, 523605, 609570, 628326, 698140, 907582, 1047210, 1219140, 1256652, 1361373, 1570815, 1815164, 2094420, 2268955, 2722746, 3141630, 4084119, 4537910, 5445492, 6283260, 6806865, 8168238, 9075820, 13613730, 16336476, 20420595, 27227460, 40841190, 81682380]

約数ペア:

[(1, 81682380), (2, 40841190), (3, 27227460), (4, 20420595), (5, 16336476), (6, 13613730), (9, 9075820), (10, 8168238), (12, 6806865), (13, 6283260), (15, 5445492), (18, 4537910), (20, 4084119), (26, 3141630), (30, 2722746), (36, 2268955), (39, 2094420), (45, 1815164), (52, 1570815), (60, 1361373), (65, 1256652), (67, 1219140), (78, 1047210), (90, 907582), (117, 698140), (130, 628326), (134, 609570), (156, 523605), (180, 453791), (195, 418884), (201, 406380), (234, 349070), (260, 314163), (268, 304785), (335, 243828), (390, 209442), (402, 203190), (468, 174535), (521, 156780), (585, 139628), (603, 135460), (670, 121914), (780, 104721), (804, 101595), (871, 93780), (1005, 81276), (1042, 78390), (1170, 69814), (1206, 67730), (1340, 60957), (1563, 52260), (1742, 46890), (2010, 40638), (2084, 39195), (2340, 34907), (2412, 33865), (2605, 31356), (2613, 31260), (3015, 27092), (3126, 26130), (3484, 23445), (4020, 20319), (4355, 18756), (4689, 17420), (5210, 15678), (5226, 15630), (6030, 13546), (6252, 13065), (6773, 12060), (7815, 10452), (7839, 10420), (8710, 9378)]