1681133720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{193679}}^1$

素因数の和:193728

約数の個数: 64

約数和(自身を含む): 4462387200

約数和(自身を除く): 2781253480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 193679, 387358, 774716, 968395, 1355753, 1549432, 1936790, 2711506, 3873580, 5423012, 6004049, 6778765, 7747160, 10846024, 12008098, 13557530, 24016196, 27115060, 30020245, 42028343, 48032392, 54230120, 60040490, 84056686, 120080980, 168113372, 210141715, 240161960, 336226744, 420283430, 840566860, 1681133720]

約数ペア:

[(1, 1681133720), (2, 840566860), (4, 420283430), (5, 336226744), (7, 240161960), (8, 210141715), (10, 168113372), (14, 120080980), (20, 84056686), (28, 60040490), (31, 54230120), (35, 48032392), (40, 42028343), (56, 30020245), (62, 27115060), (70, 24016196), (124, 13557530), (140, 12008098), (155, 10846024), (217, 7747160), (248, 6778765), (280, 6004049), (310, 5423012), (434, 3873580), (620, 2711506), (868, 1936790), (1085, 1549432), (1240, 1355753), (1736, 968395), (2170, 774716), (4340, 387358), (8680, 193679)]