308889425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 455095872

約数和(自身を除く): 146206447

約数列:

[1, 5, 13, 23, 25, 31, 43, 65, 115, 155, 215, 299, 325, 403, 559, 575, 713, 775, 961, 989, 1075, 1333, 1495, 2015, 2795, 3565, 4805, 4945, 6665, 7475, 9269, 10075, 12493, 12857, 13975, 17329, 17825, 22103, 24025, 24725, 30659, 33325, 41323, 46345, 62465, 64285, 86645, 110515, 153295, 206615, 231725, 287339, 312325, 321425, 398567, 433225, 537199, 552575, 766475, 950429, 1033075, 1436695, 1992835, 2685995, 4752145, 7183475, 9964175, 12355577, 13429975, 23760725, 61777885, 308889425]

約数ペア:

[(1, 308889425), (5, 61777885), (13, 23760725), (23, 13429975), (25, 12355577), (31, 9964175), (43, 7183475), (65, 4752145), (115, 2685995), (155, 1992835), (215, 1436695), (299, 1033075), (325, 950429), (403, 766475), (559, 552575), (575, 537199), (713, 433225), (775, 398567), (961, 321425), (989, 312325), (1075, 287339), (1333, 231725), (1495, 206615), (2015, 153295), (2795, 110515), (3565, 86645), (4805, 64285), (4945, 62465), (6665, 46345), (7475, 41323), (9269, 33325), (10075, 30659), (12493, 24725), (12857, 24025), (13975, 22103), (17329, 17825)]