649879040

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:504

約数の個数: 160

約数和(自身を含む): 1697034240

約数和(自身を除く): 1047155200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 256, 304, 310, 320, 380, 431, 496, 512, 589, 608, 620, 640, 760, 862, 992, 1178, 1216, 1240, 1280, 1520, 1724, 1984, 2155, 2356, 2432, 2480, 2560, 2945, 3040, 3448, 3968, 4310, 4712, 4864, 4960, 5890, 6080, 6896, 7936, 8189, 8620, 9424, 9728, 9920, 11780, 12160, 13361, 13792, 15872, 16378, 17240, 18848, 19840, 23560, 24320, 26722, 27584, 32756, 34480, 37696, 39680, 40945, 47120, 48640, 53444, 55168, 65512, 66805, 68960, 75392, 79360, 81890, 94240, 106888, 110336, 131024, 133610, 137920, 150784, 163780, 188480, 213776, 220672, 253859, 262048, 267220, 275840, 301568, 327560, 376960, 427552, 507718, 524096, 534440, 551680, 655120, 753920, 855104, 1015436, 1048192, 1068880, 1103360, 1269295, 1310240, 1507840, 1710208, 2030872, 2096384, 2137760, 2538590, 2620480, 3420416, 4061744, 4192768, 4275520, 5077180, 5240960, 6840832, 8123488, 8551040, 10154360, 10481920, 16246976, 17102080, 20308720, 20963840, 32493952, 34204160, 40617440, 64987904, 81234880, 129975808, 162469760, 324939520, 649879040]

約数ペア:

[(1, 649879040), (2, 324939520), (4, 162469760), (5, 129975808), (8, 81234880), (10, 64987904), (16, 40617440), (19, 34204160), (20, 32493952), (31, 20963840), (32, 20308720), (38, 17102080), (40, 16246976), (62, 10481920), (64, 10154360), (76, 8551040), (80, 8123488), (95, 6840832), (124, 5240960), (128, 5077180), (152, 4275520), (155, 4192768), (160, 4061744), (190, 3420416), (248, 2620480), (256, 2538590), (304, 2137760), (310, 2096384), (320, 2030872), (380, 1710208), (431, 1507840), (496, 1310240), (512, 1269295), (589, 1103360), (608, 1068880), (620, 1048192), (640, 1015436), (760, 855104), (862, 753920), (992, 655120), (1178, 551680), (1216, 534440), (1240, 524096), (1280, 507718), (1520, 427552), (1724, 376960), (1984, 327560), (2155, 301568), (2356, 275840), (2432, 267220), (2480, 262048), (2560, 253859), (2945, 220672), (3040, 213776), (3448, 188480), (3968, 163780), (4310, 150784), (4712, 137920), (4864, 133610), (4960, 131024), (5890, 110336), (6080, 106888), (6896, 94240), (7936, 81890), (8189, 79360), (8620, 75392), (9424, 68960), (9728, 66805), (9920, 65512), (11780, 55168), (12160, 53444), (13361, 48640), (13792, 47120), (15872, 40945), (16378, 39680), (17240, 37696), (18848, 34480), (19840, 32756), (23560, 27584), (24320, 26722)]