19607500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 120

約数和(自身を含む): 50383872

約数和(自身を除く): 30776372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 31, 44, 46, 50, 55, 62, 92, 100, 110, 115, 124, 125, 155, 220, 230, 250, 253, 275, 310, 341, 460, 500, 506, 550, 575, 620, 625, 682, 713, 775, 1012, 1100, 1150, 1250, 1265, 1364, 1375, 1426, 1550, 1705, 2300, 2500, 2530, 2750, 2852, 2875, 3100, 3410, 3565, 3875, 5060, 5500, 5750, 6325, 6820, 6875, 7130, 7750, 7843, 8525, 11500, 12650, 13750, 14260, 14375, 15500, 15686, 17050, 17825, 19375, 25300, 27500, 28750, 31372, 31625, 34100, 35650, 38750, 39215, 42625, 57500, 63250, 71300, 77500, 78430, 85250, 89125, 126500, 156860, 158125, 170500, 178250, 196075, 213125, 316250, 356500, 392150, 426250, 445625, 632500, 784300, 852500, 891250, 980375, 1782500, 1960750, 3921500, 4901875, 9803750, 19607500]

約数ペア:

[(1, 19607500), (2, 9803750), (4, 4901875), (5, 3921500), (10, 1960750), (11, 1782500), (20, 980375), (22, 891250), (23, 852500), (25, 784300), (31, 632500), (44, 445625), (46, 426250), (50, 392150), (55, 356500), (62, 316250), (92, 213125), (100, 196075), (110, 178250), (115, 170500), (124, 158125), (125, 156860), (155, 126500), (220, 89125), (230, 85250), (250, 78430), (253, 77500), (275, 71300), (310, 63250), (341, 57500), (460, 42625), (500, 39215), (506, 38750), (550, 35650), (575, 34100), (620, 31625), (625, 31372), (682, 28750), (713, 27500), (775, 25300), (1012, 19375), (1100, 17825), (1150, 17050), (1250, 15686), (1265, 15500), (1364, 14375), (1375, 14260), (1426, 13750), (1550, 12650), (1705, 11500), (2300, 8525), (2500, 7843), (2530, 7750), (2750, 7130), (2852, 6875), (2875, 6820), (3100, 6325), (3410, 5750), (3565, 5500), (3875, 5060)]