18278260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 52553088

約数和(自身を除く): 34274828

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 83, 91, 110, 121, 130, 140, 143, 154, 166, 182, 220, 242, 260, 286, 308, 332, 364, 385, 415, 455, 484, 572, 581, 605, 715, 770, 830, 847, 910, 913, 1001, 1079, 1162, 1210, 1430, 1540, 1573, 1660, 1694, 1820, 1826, 2002, 2158, 2324, 2420, 2860, 2905, 3146, 3388, 3652, 4004, 4235, 4316, 4565, 5005, 5395, 5810, 6292, 6391, 7553, 7865, 8470, 9130, 10010, 10043, 10790, 11011, 11620, 11869, 12782, 15106, 15730, 16940, 18260, 20020, 20086, 21580, 22022, 23738, 25564, 30212, 31460, 31955, 37765, 40172, 44044, 47476, 50215, 55055, 59345, 63910, 70301, 75530, 83083, 100430, 110110, 118690, 127820, 130559, 140602, 151060, 166166, 200860, 220220, 237380, 261118, 281204, 332332, 351505, 415415, 522236, 652795, 703010, 830830, 913913, 1305590, 1406020, 1661660, 1827826, 2611180, 3655652, 4569565, 9139130, 18278260]

約数ペア:

[(1, 18278260), (2, 9139130), (4, 4569565), (5, 3655652), (7, 2611180), (10, 1827826), (11, 1661660), (13, 1406020), (14, 1305590), (20, 913913), (22, 830830), (26, 703010), (28, 652795), (35, 522236), (44, 415415), (52, 351505), (55, 332332), (65, 281204), (70, 261118), (77, 237380), (83, 220220), (91, 200860), (110, 166166), (121, 151060), (130, 140602), (140, 130559), (143, 127820), (154, 118690), (166, 110110), (182, 100430), (220, 83083), (242, 75530), (260, 70301), (286, 63910), (308, 59345), (332, 55055), (364, 50215), (385, 47476), (415, 44044), (455, 40172), (484, 37765), (572, 31955), (581, 31460), (605, 30212), (715, 25564), (770, 23738), (830, 22022), (847, 21580), (910, 20086), (913, 20020), (1001, 18260), (1079, 16940), (1162, 15730), (1210, 15106), (1430, 12782), (1540, 11869), (1573, 11620), (1660, 11011), (1694, 10790), (1820, 10043), (1826, 10010), (2002, 9130), (2158, 8470), (2324, 7865), (2420, 7553), (2860, 6391), (2905, 6292), (3146, 5810), (3388, 5395), (3652, 5005), (4004, 4565), (4235, 4316)]