65781380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:729

約数の個数: 96

約数和(自身を含む): 170311680

約数和(自身を除く): 104530300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 659, 713, 805, 868, 1085, 1318, 1426, 1610, 2170, 2636, 2852, 3220, 3295, 3565, 4340, 4613, 4991, 6590, 7130, 9226, 9982, 13180, 14260, 15157, 18452, 19964, 20429, 23065, 24955, 30314, 40858, 46130, 49910, 60628, 75785, 81716, 92260, 99820, 102145, 106099, 143003, 151570, 204290, 212198, 286006, 303140, 408580, 424396, 469867, 530495, 572012, 715015, 939734, 1060990, 1430030, 1879468, 2121980, 2349335, 2860060, 3289069, 4698670, 6578138, 9397340, 13156276, 16445345, 32890690, 65781380]

約数ペア:

[(1, 65781380), (2, 32890690), (4, 16445345), (5, 13156276), (7, 9397340), (10, 6578138), (14, 4698670), (20, 3289069), (23, 2860060), (28, 2349335), (31, 2121980), (35, 1879468), (46, 1430030), (62, 1060990), (70, 939734), (92, 715015), (115, 572012), (124, 530495), (140, 469867), (155, 424396), (161, 408580), (217, 303140), (230, 286006), (310, 212198), (322, 204290), (434, 151570), (460, 143003), (620, 106099), (644, 102145), (659, 99820), (713, 92260), (805, 81716), (868, 75785), (1085, 60628), (1318, 49910), (1426, 46130), (1610, 40858), (2170, 30314), (2636, 24955), (2852, 23065), (3220, 20429), (3295, 19964), (3565, 18452), (4340, 15157), (4613, 14260), (4991, 13180), (6590, 9982), (7130, 9226)]