19412575

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 32060448

約数和(自身を除く): 12647873

約数列:

[1, 5, 7, 13, 23, 25, 35, 49, 53, 65, 91, 115, 161, 175, 245, 265, 299, 325, 371, 455, 575, 637, 689, 805, 1127, 1219, 1225, 1325, 1495, 1855, 2093, 2275, 2597, 3185, 3445, 4025, 4823, 5635, 6095, 7475, 8533, 9275, 10465, 12985, 14651, 15847, 15925, 17225, 24115, 28175, 30475, 33761, 42665, 52325, 59731, 64925, 73255, 79235, 110929, 120575, 168805, 213325, 298655, 366275, 396175, 554645, 776503, 844025, 1493275, 2773225, 3882515, 19412575]

約数ペア:

[(1, 19412575), (5, 3882515), (7, 2773225), (13, 1493275), (23, 844025), (25, 776503), (35, 554645), (49, 396175), (53, 366275), (65, 298655), (91, 213325), (115, 168805), (161, 120575), (175, 110929), (245, 79235), (265, 73255), (299, 64925), (325, 59731), (371, 52325), (455, 42665), (575, 33761), (637, 30475), (689, 28175), (805, 24115), (1127, 17225), (1219, 15925), (1225, 15847), (1325, 14651), (1495, 12985), (1855, 10465), (2093, 9275), (2275, 8533), (2597, 7475), (3185, 6095), (3445, 5635), (4025, 4823)]