20731097205

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1163}}^1\times {\mathrm{1451}}^1$

素因数の和:2648

約数の個数: 128

約数和(自身を含む): 45430640640

約数和(自身を除く): 24699543435

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 91, 105, 117, 135, 189, 195, 273, 315, 351, 455, 585, 819, 945, 1163, 1365, 1451, 1755, 2457, 3489, 4095, 4353, 5815, 7255, 8141, 10157, 10467, 12285, 13059, 15119, 17445, 18863, 21765, 24423, 30471, 31401, 39177, 40705, 45357, 50785, 52335, 56589, 65295, 73269, 75595, 91413, 94315, 105833, 122115, 132041, 136071, 152355, 157005, 169767, 195885, 219807, 226785, 274239, 282945, 317499, 366345, 396123, 408213, 457065, 509301, 529165, 660205, 680355, 848835, 952497, 1099035, 1188369, 1371195, 1587495, 1687513, 1980615, 2041065, 2546505, 2857491, 3565107, 4762485, 5062539, 5941845, 8437565, 11812591, 14287455, 15187617, 17825535, 21937669, 25312695, 35437773, 45562851, 59062955, 65813007, 75938085, 106313319, 109688345, 153563683, 177188865, 197439021, 227814255, 318939957, 329065035, 460691049, 531566595, 592317063, 767818415, 987195105, 1382073147, 1594699785, 2303455245, 2961585315, 4146219441, 6910365735, 20731097205]

約数ペア:

[(1, 20731097205), (3, 6910365735), (5, 4146219441), (7, 2961585315), (9, 2303455245), (13, 1594699785), (15, 1382073147), (21, 987195105), (27, 767818415), (35, 592317063), (39, 531566595), (45, 460691049), (63, 329065035), (65, 318939957), (91, 227814255), (105, 197439021), (117, 177188865), (135, 153563683), (189, 109688345), (195, 106313319), (273, 75938085), (315, 65813007), (351, 59062955), (455, 45562851), (585, 35437773), (819, 25312695), (945, 21937669), (1163, 17825535), (1365, 15187617), (1451, 14287455), (1755, 11812591), (2457, 8437565), (3489, 5941845), (4095, 5062539), (4353, 4762485), (5815, 3565107), (7255, 2857491), (8141, 2546505), (10157, 2041065), (10467, 1980615), (12285, 1687513), (13059, 1587495), (15119, 1371195), (17445, 1188369), (18863, 1099035), (21765, 952497), (24423, 848835), (30471, 680355), (31401, 660205), (39177, 529165), (40705, 509301), (45357, 457065), (50785, 408213), (52335, 396123), (56589, 366345), (65295, 317499), (73269, 282945), (75595, 274239), (91413, 226785), (94315, 219807), (105833, 195885), (122115, 169767), (132041, 157005), (136071, 152355)]