261001572

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 700717248

約数和(自身を除く): 439715676

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 43, 52, 73, 78, 82, 86, 123, 129, 146, 156, 164, 169, 172, 219, 246, 258, 292, 338, 438, 492, 507, 516, 533, 559, 676, 876, 949, 1014, 1066, 1118, 1599, 1677, 1763, 1898, 2028, 2132, 2236, 2847, 2993, 3139, 3198, 3354, 3526, 3796, 5289, 5694, 5986, 6278, 6396, 6708, 6929, 7052, 7267, 8979, 9417, 10578, 11388, 11972, 12337, 12556, 13858, 14534, 17958, 18834, 20787, 21156, 21801, 22919, 24674, 27716, 29068, 35916, 37011, 37668, 38909, 40807, 41574, 43602, 45838, 49348, 68757, 74022, 77818, 81614, 83148, 87204, 91676, 116727, 122421, 128699, 137514, 148044, 155636, 163228, 233454, 244842, 257398, 275028, 297947, 386097, 466908, 489684, 505817, 514796, 530491, 595894, 772194, 893841, 1011634, 1060982, 1191788, 1517451, 1544388, 1591473, 1673087, 1787682, 2023268, 2121964, 3034902, 3182946, 3346174, 3575364, 5019261, 6069804, 6365892, 6692348, 10038522, 20077044, 21750131, 43500262, 65250393, 87000524, 130500786, 261001572]

約数ペア:

[(1, 261001572), (2, 130500786), (3, 87000524), (4, 65250393), (6, 43500262), (12, 21750131), (13, 20077044), (26, 10038522), (39, 6692348), (41, 6365892), (43, 6069804), (52, 5019261), (73, 3575364), (78, 3346174), (82, 3182946), (86, 3034902), (123, 2121964), (129, 2023268), (146, 1787682), (156, 1673087), (164, 1591473), (169, 1544388), (172, 1517451), (219, 1191788), (246, 1060982), (258, 1011634), (292, 893841), (338, 772194), (438, 595894), (492, 530491), (507, 514796), (516, 505817), (533, 489684), (559, 466908), (676, 386097), (876, 297947), (949, 275028), (1014, 257398), (1066, 244842), (1118, 233454), (1599, 163228), (1677, 155636), (1763, 148044), (1898, 137514), (2028, 128699), (2132, 122421), (2236, 116727), (2847, 91676), (2993, 87204), (3139, 83148), (3198, 81614), (3354, 77818), (3526, 74022), (3796, 68757), (5289, 49348), (5694, 45838), (5986, 43602), (6278, 41574), (6396, 40807), (6708, 38909), (6929, 37668), (7052, 37011), (7267, 35916), (8979, 29068), (9417, 27716), (10578, 24674), (11388, 22919), (11972, 21801), (12337, 21156), (12556, 20787), (13858, 18834), (14534, 17958)]