80915240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 223948800

約数和(自身を除く): 143033560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 89, 119, 136, 140, 170, 178, 191, 238, 280, 340, 356, 382, 445, 476, 595, 623, 680, 712, 764, 890, 952, 955, 1190, 1246, 1337, 1513, 1528, 1780, 1910, 2380, 2492, 2674, 3026, 3115, 3247, 3560, 3820, 4760, 4984, 5348, 6052, 6230, 6494, 6685, 7565, 7640, 10591, 10696, 12104, 12460, 12988, 13370, 15130, 16235, 16999, 21182, 22729, 24920, 25976, 26740, 30260, 32470, 33998, 42364, 45458, 52955, 53480, 60520, 64940, 67996, 84728, 84995, 90916, 105910, 113645, 118993, 129880, 135992, 169990, 181832, 211820, 227290, 237986, 288983, 339980, 423640, 454580, 475972, 577966, 594965, 679960, 909160, 951944, 1155932, 1189930, 1444915, 2022881, 2311864, 2379860, 2889830, 4045762, 4759720, 5779660, 8091524, 10114405, 11559320, 16183048, 20228810, 40457620, 80915240]

約数ペア:

[(1, 80915240), (2, 40457620), (4, 20228810), (5, 16183048), (7, 11559320), (8, 10114405), (10, 8091524), (14, 5779660), (17, 4759720), (20, 4045762), (28, 2889830), (34, 2379860), (35, 2311864), (40, 2022881), (56, 1444915), (68, 1189930), (70, 1155932), (85, 951944), (89, 909160), (119, 679960), (136, 594965), (140, 577966), (170, 475972), (178, 454580), (191, 423640), (238, 339980), (280, 288983), (340, 237986), (356, 227290), (382, 211820), (445, 181832), (476, 169990), (595, 135992), (623, 129880), (680, 118993), (712, 113645), (764, 105910), (890, 90916), (952, 84995), (955, 84728), (1190, 67996), (1246, 64940), (1337, 60520), (1513, 53480), (1528, 52955), (1780, 45458), (1910, 42364), (2380, 33998), (2492, 32470), (2674, 30260), (3026, 26740), (3115, 25976), (3247, 24920), (3560, 22729), (3820, 21182), (4760, 16999), (4984, 16235), (5348, 15130), (6052, 13370), (6230, 12988), (6494, 12460), (6685, 12104), (7565, 10696), (7640, 10591)]