19928350

素因数分解:

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

素因数の和:122

約数の個数: 96

約数和(自身を含む): 43997184

約数和(自身を除く): 24068834

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 31, 43, 46, 50, 62, 65, 86, 115, 130, 155, 215, 230, 299, 310, 325, 403, 430, 559, 575, 598, 650, 713, 775, 806, 989, 1075, 1118, 1150, 1333, 1426, 1495, 1550, 1978, 2015, 2150, 2666, 2795, 2990, 3565, 4030, 4945, 5590, 6665, 7130, 7475, 9269, 9890, 10075, 12857, 13330, 13975, 14950, 17329, 17825, 18538, 20150, 24725, 25714, 27950, 30659, 33325, 34658, 35650, 46345, 49450, 61318, 64285, 66650, 86645, 92690, 128570, 153295, 173290, 231725, 306590, 321425, 398567, 433225, 463450, 642850, 766475, 797134, 866450, 1532950, 1992835, 3985670, 9964175, 19928350]

約数ペア:

[(1, 19928350), (2, 9964175), (5, 3985670), (10, 1992835), (13, 1532950), (23, 866450), (25, 797134), (26, 766475), (31, 642850), (43, 463450), (46, 433225), (50, 398567), (62, 321425), (65, 306590), (86, 231725), (115, 173290), (130, 153295), (155, 128570), (215, 92690), (230, 86645), (299, 66650), (310, 64285), (325, 61318), (403, 49450), (430, 46345), (559, 35650), (575, 34658), (598, 33325), (650, 30659), (713, 27950), (775, 25714), (806, 24725), (989, 20150), (1075, 18538), (1118, 17825), (1150, 17329), (1333, 14950), (1426, 13975), (1495, 13330), (1550, 12857), (1978, 10075), (2015, 9890), (2150, 9269), (2666, 7475), (2795, 7130), (2990, 6665), (3565, 5590), (4030, 4945)]