218864340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:750

約数の個数: 144

約数和(自身を含む): 697622016

約数和(自身を除く): 478757676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 61, 62, 90, 93, 122, 124, 155, 180, 183, 186, 244, 279, 305, 310, 366, 372, 465, 549, 558, 610, 620, 643, 732, 915, 930, 1098, 1116, 1220, 1286, 1395, 1830, 1860, 1891, 1929, 2196, 2572, 2745, 2790, 3215, 3660, 3782, 3858, 5490, 5580, 5673, 5787, 6430, 7564, 7716, 9455, 9645, 10980, 11346, 11574, 12860, 17019, 18910, 19290, 19933, 22692, 23148, 28365, 28935, 34038, 37820, 38580, 39223, 39866, 56730, 57870, 59799, 68076, 78446, 79732, 85095, 99665, 113460, 115740, 117669, 119598, 156892, 170190, 179397, 196115, 199330, 235338, 239196, 298995, 340380, 353007, 358794, 392230, 398660, 470676, 588345, 597990, 706014, 717588, 784460, 896985, 1176690, 1195980, 1215913, 1412028, 1765035, 1793970, 2353380, 2431826, 3530070, 3587940, 3647739, 4863652, 6079565, 7060140, 7295478, 10943217, 12159130, 14590956, 18238695, 21886434, 24318260, 36477390, 43772868, 54716085, 72954780, 109432170, 218864340]

約数ペア:

[(1, 218864340), (2, 109432170), (3, 72954780), (4, 54716085), (5, 43772868), (6, 36477390), (9, 24318260), (10, 21886434), (12, 18238695), (15, 14590956), (18, 12159130), (20, 10943217), (30, 7295478), (31, 7060140), (36, 6079565), (45, 4863652), (60, 3647739), (61, 3587940), (62, 3530070), (90, 2431826), (93, 2353380), (122, 1793970), (124, 1765035), (155, 1412028), (180, 1215913), (183, 1195980), (186, 1176690), (244, 896985), (279, 784460), (305, 717588), (310, 706014), (366, 597990), (372, 588345), (465, 470676), (549, 398660), (558, 392230), (610, 358794), (620, 353007), (643, 340380), (732, 298995), (915, 239196), (930, 235338), (1098, 199330), (1116, 196115), (1220, 179397), (1286, 170190), (1395, 156892), (1830, 119598), (1860, 117669), (1891, 115740), (1929, 113460), (2196, 99665), (2572, 85095), (2745, 79732), (2790, 78446), (3215, 68076), (3660, 59799), (3782, 57870), (3858, 56730), (5490, 39866), (5580, 39223), (5673, 38580), (5787, 37820), (6430, 34038), (7564, 28935), (7716, 28365), (9455, 23148), (9645, 22692), (10980, 19933), (11346, 19290), (11574, 18910), (12860, 17019)]