40271940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{977}}^1$

素因数の和:1221

約数の個数: 72

約数和(自身を含む): 122817240

約数和(自身を除く): 82545300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 977, 1145, 1374, 1954, 2061, 2290, 2748, 2931, 3435, 3908, 4122, 4580, 4885, 5862, 6870, 8244, 8793, 9770, 10305, 11724, 13740, 14655, 17586, 19540, 20610, 29310, 35172, 41220, 43965, 58620, 87930, 175860, 223733, 447466, 671199, 894932, 1118665, 1342398, 2013597, 2237330, 2684796, 3355995, 4027194, 4474660, 6711990, 8054388, 10067985, 13423980, 20135970, 40271940]

約数ペア:

[(1, 40271940), (2, 20135970), (3, 13423980), (4, 10067985), (5, 8054388), (6, 6711990), (9, 4474660), (10, 4027194), (12, 3355995), (15, 2684796), (18, 2237330), (20, 2013597), (30, 1342398), (36, 1118665), (45, 894932), (60, 671199), (90, 447466), (180, 223733), (229, 175860), (458, 87930), (687, 58620), (916, 43965), (977, 41220), (1145, 35172), (1374, 29310), (1954, 20610), (2061, 19540), (2290, 17586), (2748, 14655), (2931, 13740), (3435, 11724), (3908, 10305), (4122, 9770), (4580, 8793), (4885, 8244), (5862, 6870)]