68898780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 220540320

約数和(自身を除く): 151641540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 67, 87, 90, 116, 134, 145, 174, 180, 197, 201, 261, 268, 290, 335, 348, 394, 402, 435, 522, 580, 591, 603, 670, 788, 804, 870, 985, 1005, 1044, 1182, 1206, 1305, 1340, 1740, 1773, 1943, 1970, 2010, 2364, 2412, 2610, 2955, 3015, 3546, 3886, 3940, 4020, 5220, 5713, 5829, 5910, 6030, 7092, 7772, 8865, 9715, 11426, 11658, 11820, 12060, 13199, 17139, 17487, 17730, 19430, 22852, 23316, 26398, 28565, 29145, 34278, 34974, 35460, 38860, 39597, 51417, 52796, 57130, 58290, 65995, 68556, 69948, 79194, 85695, 87435, 102834, 114260, 116580, 118791, 131990, 158388, 171390, 174870, 197985, 205668, 237582, 257085, 263980, 342780, 349740, 382771, 395970, 475164, 514170, 593955, 765542, 791940, 1028340, 1148313, 1187910, 1531084, 1913855, 2296626, 2375820, 3444939, 3827710, 4593252, 5741565, 6889878, 7655420, 11483130, 13779756, 17224695, 22966260, 34449390, 68898780]

約数ペア:

[(1, 68898780), (2, 34449390), (3, 22966260), (4, 17224695), (5, 13779756), (6, 11483130), (9, 7655420), (10, 6889878), (12, 5741565), (15, 4593252), (18, 3827710), (20, 3444939), (29, 2375820), (30, 2296626), (36, 1913855), (45, 1531084), (58, 1187910), (60, 1148313), (67, 1028340), (87, 791940), (90, 765542), (116, 593955), (134, 514170), (145, 475164), (174, 395970), (180, 382771), (197, 349740), (201, 342780), (261, 263980), (268, 257085), (290, 237582), (335, 205668), (348, 197985), (394, 174870), (402, 171390), (435, 158388), (522, 131990), (580, 118791), (591, 116580), (603, 114260), (670, 102834), (788, 87435), (804, 85695), (870, 79194), (985, 69948), (1005, 68556), (1044, 65995), (1182, 58290), (1206, 57130), (1305, 52796), (1340, 51417), (1740, 39597), (1773, 38860), (1943, 35460), (1970, 34974), (2010, 34278), (2364, 29145), (2412, 28565), (2610, 26398), (2955, 23316), (3015, 22852), (3546, 19430), (3886, 17730), (3940, 17487), (4020, 17139), (5220, 13199), (5713, 12060), (5829, 11820), (5910, 11658), (6030, 11426), (7092, 9715), (7772, 8865)]