138871380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1997}}^1$

素因数の和:2089

約数の個数: 96

約数和(自身を含む): 416223360

約数和(自身を除く): 277351980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 61, 76, 95, 114, 122, 183, 190, 228, 244, 285, 305, 366, 380, 570, 610, 732, 915, 1140, 1159, 1220, 1830, 1997, 2318, 3477, 3660, 3994, 4636, 5795, 5991, 6954, 7988, 9985, 11590, 11982, 13908, 17385, 19970, 23180, 23964, 29955, 34770, 37943, 39940, 59910, 69540, 75886, 113829, 119820, 121817, 151772, 189715, 227658, 243634, 365451, 379430, 455316, 487268, 569145, 609085, 730902, 758860, 1138290, 1218170, 1461804, 1827255, 2276580, 2314523, 2436340, 3654510, 4629046, 6943569, 7309020, 9258092, 11572615, 13887138, 23145230, 27774276, 34717845, 46290460, 69435690, 138871380]

約数ペア:

[(1, 138871380), (2, 69435690), (3, 46290460), (4, 34717845), (5, 27774276), (6, 23145230), (10, 13887138), (12, 11572615), (15, 9258092), (19, 7309020), (20, 6943569), (30, 4629046), (38, 3654510), (57, 2436340), (60, 2314523), (61, 2276580), (76, 1827255), (95, 1461804), (114, 1218170), (122, 1138290), (183, 758860), (190, 730902), (228, 609085), (244, 569145), (285, 487268), (305, 455316), (366, 379430), (380, 365451), (570, 243634), (610, 227658), (732, 189715), (915, 151772), (1140, 121817), (1159, 119820), (1220, 113829), (1830, 75886), (1997, 69540), (2318, 59910), (3477, 39940), (3660, 37943), (3994, 34770), (4636, 29955), (5795, 23964), (5991, 23180), (6954, 19970), (7988, 17385), (9985, 13908), (11590, 11982)]