905888970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{205417}}^1$

素因数の和:205444

約数の個数: 72

約数和(自身を含む): 2739865284

約数和(自身を除く): 1833976314

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 205417, 410834, 616251, 1027085, 1232502, 1437919, 1848753, 2054170, 2875838, 3081255, 3697506, 4313757, 6162510, 7189595, 8627514, 9243765, 10065433, 12941271, 14379190, 18487530, 20130866, 21568785, 25882542, 30196299, 43137570, 50327165, 60392598, 64706355, 90588897, 100654330, 129412710, 150981495, 181177794, 301962990, 452944485, 905888970]

約数ペア:

[(1, 905888970), (2, 452944485), (3, 301962990), (5, 181177794), (6, 150981495), (7, 129412710), (9, 100654330), (10, 90588897), (14, 64706355), (15, 60392598), (18, 50327165), (21, 43137570), (30, 30196299), (35, 25882542), (42, 21568785), (45, 20130866), (49, 18487530), (63, 14379190), (70, 12941271), (90, 10065433), (98, 9243765), (105, 8627514), (126, 7189595), (147, 6162510), (210, 4313757), (245, 3697506), (294, 3081255), (315, 2875838), (441, 2054170), (490, 1848753), (630, 1437919), (735, 1232502), (882, 1027085), (1470, 616251), (2205, 410834), (4410, 205417)]