81894540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{283}}^1$

素因数の和:368

約数の個数: 192

約数和(自身を含む): 288562176

約数和(自身を除く): 206667636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 53, 60, 65, 70, 78, 84, 91, 105, 106, 130, 140, 156, 159, 182, 195, 210, 212, 260, 265, 273, 283, 318, 364, 371, 390, 420, 455, 530, 546, 566, 636, 689, 742, 780, 795, 849, 910, 1060, 1092, 1113, 1132, 1365, 1378, 1415, 1484, 1590, 1698, 1820, 1855, 1981, 2067, 2226, 2730, 2756, 2830, 3180, 3396, 3445, 3679, 3710, 3962, 4134, 4245, 4452, 4823, 5460, 5565, 5660, 5943, 6890, 7358, 7420, 7924, 8268, 8490, 9646, 9905, 10335, 11037, 11130, 11886, 13780, 14469, 14716, 14999, 16980, 18395, 19292, 19810, 20670, 22074, 22260, 23772, 24115, 25753, 28938, 29715, 29998, 36790, 39620, 41340, 44148, 44997, 48230, 51506, 55185, 57876, 59430, 59996, 72345, 73580, 74995, 77259, 89994, 96460, 103012, 104993, 110370, 118860, 128765, 144690, 149990, 154518, 179988, 194987, 209986, 220740, 224985, 257530, 289380, 299980, 309036, 314979, 386295, 389974, 419972, 449970, 515060, 524965, 584961, 629958, 772590, 779948, 899940, 974935, 1049930, 1169922, 1259916, 1364909, 1545180, 1574895, 1949870, 2099860, 2339844, 2729818, 2924805, 3149790, 3899740, 4094727, 5459636, 5849610, 6299580, 6824545, 8189454, 11699220, 13649090, 16378908, 20473635, 27298180, 40947270, 81894540]

約数ペア:

[(1, 81894540), (2, 40947270), (3, 27298180), (4, 20473635), (5, 16378908), (6, 13649090), (7, 11699220), (10, 8189454), (12, 6824545), (13, 6299580), (14, 5849610), (15, 5459636), (20, 4094727), (21, 3899740), (26, 3149790), (28, 2924805), (30, 2729818), (35, 2339844), (39, 2099860), (42, 1949870), (52, 1574895), (53, 1545180), (60, 1364909), (65, 1259916), (70, 1169922), (78, 1049930), (84, 974935), (91, 899940), (105, 779948), (106, 772590), (130, 629958), (140, 584961), (156, 524965), (159, 515060), (182, 449970), (195, 419972), (210, 389974), (212, 386295), (260, 314979), (265, 309036), (273, 299980), (283, 289380), (318, 257530), (364, 224985), (371, 220740), (390, 209986), (420, 194987), (455, 179988), (530, 154518), (546, 149990), (566, 144690), (636, 128765), (689, 118860), (742, 110370), (780, 104993), (795, 103012), (849, 96460), (910, 89994), (1060, 77259), (1092, 74995), (1113, 73580), (1132, 72345), (1365, 59996), (1378, 59430), (1415, 57876), (1484, 55185), (1590, 51506), (1698, 48230), (1820, 44997), (1855, 44148), (1981, 41340), (2067, 39620), (2226, 36790), (2730, 29998), (2756, 29715), (2830, 28938), (3180, 25753), (3396, 24115), (3445, 23772), (3679, 22260), (3710, 22074), (3962, 20670), (4134, 19810), (4245, 19292), (4452, 18395), (4823, 16980), (5460, 14999), (5565, 14716), (5660, 14469), (5943, 13780), (6890, 11886), (7358, 11130), (7420, 11037), (7924, 10335), (8268, 9905), (8490, 9646)]