28489790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 62985600

約数和(自身を除く): 34495810

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 89, 119, 170, 178, 238, 269, 445, 538, 595, 623, 890, 1190, 1246, 1345, 1513, 1883, 2690, 3026, 3115, 3766, 4573, 6230, 7565, 9146, 9415, 10591, 15130, 18830, 21182, 22865, 23941, 32011, 45730, 47882, 52955, 64022, 105910, 119705, 160055, 167587, 239410, 320110, 335174, 406997, 813994, 837935, 1675870, 2034985, 2848979, 4069970, 5697958, 14244895, 28489790]

約数ペア:

[(1, 28489790), (2, 14244895), (5, 5697958), (7, 4069970), (10, 2848979), (14, 2034985), (17, 1675870), (34, 837935), (35, 813994), (70, 406997), (85, 335174), (89, 320110), (119, 239410), (170, 167587), (178, 160055), (238, 119705), (269, 105910), (445, 64022), (538, 52955), (595, 47882), (623, 45730), (890, 32011), (1190, 23941), (1246, 22865), (1345, 21182), (1513, 18830), (1883, 15130), (2690, 10591), (3026, 9415), (3115, 9146), (3766, 7565), (4573, 6230)]