391567985540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1\times {\mathrm{7703}}^1$

素因数の和:8409

約数の個数: 96

約数和(自身を含む): 855834771456

約数和(自身を除く): 464266785916

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 163, 310, 326, 503, 620, 652, 815, 1006, 1630, 2012, 2515, 3260, 5030, 5053, 7703, 10060, 10106, 15406, 15593, 20212, 25265, 30812, 31186, 38515, 50530, 62372, 77030, 77965, 81989, 101060, 154060, 155930, 163978, 238793, 311860, 327956, 409945, 477586, 819890, 955172, 1193965, 1255589, 1639780, 2387930, 2511178, 2541659, 3874609, 4775860, 5022356, 5083318, 6277945, 7749218, 10166636, 12555890, 12708295, 15498436, 19373045, 25111780, 25416590, 38746090, 38923259, 50833180, 77492180, 77846518, 120112879, 155693036, 194616295, 240225758, 389232590, 480451516, 600564395, 631561267, 778465180, 1201128790, 1263122534, 2402257580, 2526245068, 3157806335, 6315612670, 12631225340, 19578399277, 39156798554, 78313597108, 97891996385, 195783992770, 391567985540]

約数ペア:

[(1, 391567985540), (2, 195783992770), (4, 97891996385), (5, 78313597108), (10, 39156798554), (20, 19578399277), (31, 12631225340), (62, 6315612670), (124, 3157806335), (155, 2526245068), (163, 2402257580), (310, 1263122534), (326, 1201128790), (503, 778465180), (620, 631561267), (652, 600564395), (815, 480451516), (1006, 389232590), (1630, 240225758), (2012, 194616295), (2515, 155693036), (3260, 120112879), (5030, 77846518), (5053, 77492180), (7703, 50833180), (10060, 38923259), (10106, 38746090), (15406, 25416590), (15593, 25111780), (20212, 19373045), (25265, 15498436), (30812, 12708295), (31186, 12555890), (38515, 10166636), (50530, 7749218), (62372, 6277945), (77030, 5083318), (77965, 5022356), (81989, 4775860), (101060, 3874609), (154060, 2541659), (155930, 2511178), (163978, 2387930), (238793, 1639780), (311860, 1255589), (327956, 1193965), (409945, 955172), (477586, 819890)]